You can do that via comparing their impact !!

@Pedro L. Ramos

Dear Abdisalam.

There is not a guide list with all possible journals, usually, you can select the best ones depending on the impact factor and SJR index. But these metrics should not be used to compared two journals. The Scimago Journal provides a good rank that can be of great assistance for

https://www.scimagojr.com/journalrank.php?category=2613

This list provides journals with a higher impact on Probability and Statistics.

Thanks @Pedro L. Ramos

It depends where you draw the line: there are, obviously, excellent math/stats journals, and dreadful math/stats journals; the line where good ends and bad starts is always moving in a subjective manner.

Thanks @George Stoica

Totally agreed with Pedro L. Ramos statement. Through Impact factor can identified famous/popular journal in any subject. But We cannot say if low impact factor journals are comes under bad journals category. Abdisalam Hassan Muse

https://www.researchgate.net/post/Can_You_share_the_name_of_High_Impact_Factor_Journal_In_your_Subject Pedro L. Ramos George Stoica Abdisalam Hassan Muse Your views expected here too.... Thanks

Thanks @G. Stephen

Impact factor and SJR factor can help you to get information regarding good and bad journal.

https://www.scimagojr.com/journalrank.php?category=2601 (Mathematics)

https://www.scimagojr.com/journalrank.php?category=2613 (Stastitics) Abdisalam Hassan Muse As per today date... scimagojr

Thanks @shahin mardani

Thanks @Kabita Shah

We have to identify whether the journal is predatory or not.

Thanks @Injila Tiwari

Article Statistical Modelling of Citation Exchange Between Statistics Journals

Thanks @Subina Tripathi

The answer depends on the reputation of a journal. Many journals have a good reputation, but low impact factors because the impact factor of a journal is a very simplistic measure of complex factors. The predatory journals can be identified from https://beallslist.net/

Thanks @Sajid Ali

A typical RG question for which there is no clear answer. For one, "good" will mean high quality of published works, for another it will be easy to publish the work, and for others it will be a long tradition of journal.

Thanks @Miroslaw Grzesik for your fruitful comment

I think it depends on the reputation of the journal.

Open access journals have high impact factor that doesn't meant that they are good journals. So many factors are related with good and bad journals. In my opinion bad word is not appropriate. I think, good journals relate with publishers. i.e., who is publishing the journal. Like Elsevier, Taylor & Francis, Blackwell, Sage, Wiley etc..

Thanks @Sanku Dey

Thanks @Mahammad Khuddush

Thanks Arne Johannssen

I do not have much idea about Mathematics and Statistics. I am more on Journalism. For my paper published, I was just one of the co-authors of that collaborative research and the main researchers were really the experts on mathematics, statistics, chemistry, and physics.

Statistical Journals listed in UGC approved list in India may be considered as good journal. However, Statistical Journals with NAAS rating greater than 5 are also of good quality.

Thanks @B. K. Hooda

Dear Abdisalam Hassan Muse you can differentiate between journals using impact factor and Quartiles (Q1, Q2, Q3, or Q4).

Thanks @Fady M. A Hassouna

Dear Abdisalam Hassan Muse

you can use this data

Data 2020 - Journal Impact Factor & Quartile

Data 2019 - Journal Impact Factor

Important question but mycology .

1- impact factor , idealy the higher the impact factor the better the journal.

2- quartile. As per speciality Q1 is better than Q2 etc

You can do that via comparing their impact !!

good journals have a high impact factor.

It can be differentiated by their impact factor which is high for good journal

Impact factor & SJR index

Impact factor, citescore, H index...

There are several indicators you can judge that journal is bad or good, e.g. cite score, impact factor... etc. Some of journal is out of scientific classification, hence, you find their publications very bad, unscientific.

I have a big doubt: open journals are good or not? In Portugal, the National Research Council does not sponsor "paid publications". I agree with the previous answers.

By The impact factor or journal impact factor of an academic journal is a scientometric index that reflects the yearly average number of citations that articles published in the last two years in a given journal received.

In my opinion : Q1 > Q2 > Q3 > Q4.

The answer for N. Bebiano's question is not always simple. It seems that all depends on the Journal's aims. For instance, the "New York Journal of Mathematics" (https://nyjm.albany.edu/nyjm.html) is open and is of good quality.

Another prestigious open journal is "Discrete Analysis" (https://discreteanalysisjournal.com/). Just take a look at its Editorial Board.

By impact factor, H index, SJR, ....

This question is very useful for the researchers, I think. The researchers need to publish their research output in a good quality journals. However, the researchers sometimes published their findings in a bad quality journals, this is unwanted. Therefore, we have to know the criteria for good quality journals. Now a days, it is very easy to identify good quality journals.

First of all, you have to choose any journals under Elsevier, Wiley, Springier, Tailor & Francis company journals.

Secondly, you may choose the journals under MDPI, PLOS, Frontiers, Hindawai etc. as an open access journals.

Thirdly, You may publish the article in a open access journals with DOI number under DOAJ.

Besides these, you may consider Impact factor, Cite score and SJR value and also consider QI, Q2, Q3 and Q4 journals.

You should publish in the journal whose articles you read yourself, or your colleagues recommend it. At least you are part of the circle of problems of this journal. Of course, this does not apply to frankly trash journals.

"Good quality" - this is very arbitrary. Now it is so, but in few years it will turn out that the journal is bad ...

You can use Incites journal citation reports of Web of Science (https://jcr.clarivate.com/JCRHomePageAction.action?). By using the "Select Categories" option, you can choose all journals in a specific category( statistics, mathematics, etc.). Then, you can see all performances of the journals in detail.