I am looking for a Q1 journal with a publication cost of 0 USD and a very short publishing period, specifically in the field of Hybrid Neural Networks. Can anyone suggest some?
Dear Md Foysal Ahmed There are most likely no journals that combine and speed and no costs (and being Q1).
For Q1 journals you can choose subscription based journals (or so-called hybrid journals where you can decline the open access option), they charge you nothing (in most cases).
You can have a look at the enclosed file (a version of one year ago but with still relevant info) for Clarivate indexed journals.
For Q1 Scopus indexed journals you can have a look at SCImago: https://www.scimagojr.com
You have to pay now for reputable journals that have fast turnaround and reliable review processes. You can't get quality for free and you won't regret it :)