Well, the first casino you see is not worth choosing. Since there probably will not be very good slots or the bonus system will be bad. Newcomers do not notice this, but when you start playing more often, it is very much seen. I recommend you look at all the new slots
https://bigwinguide.com/slots/online-slots/ here. There is a description for each slot. When you choose slots pay attention to the animation, the number of combinations, etc. In the casino choose a good bonus system.