That would depend on the kind of statistical tests that you would like to carry out and your level of understanding of statistics. For most beginners, I would suggest YouTube because it offers what you search for and you can learn at your own pace. I created a YouTube channel on data analysis using SPSS/PSPP. It has received 40,000 views so far.
s. Rama Gokula Krishnan has a point. This question is too vast for a simple answer, so the answer defaults to YouTube. Besides SPSS, Stata has a good YouTube channel, Orange has a brilliant one (it helps that Orange has a brilliant object-based interface), and there's lots on jamovi and JASP too.
Only you, Nasantogtokh Erdenebileg , can judge which is the best, because only you know what's best for your needs.