Mostly a reader, rarely post, thought I would drop how I pick an online casino these days. After a few bad experiences I stopped going by ads alone.
I always start with licensing: see which authority is listed in the footer, and whether they actually accept players from your country. Then payments: crypto is a plus but not a must, and there should be no weird fees on cashouts.
The welcome offer is where most people get caught. Anything above 40x rollover is a red flag for me, and the bonus usually expires in a week or two. A useful overview with bonus rules, app info and payment methods can be found here [url=http://weblabor.hu/tagok/122102]Lottoland Finland[/url] and it saved me some time.
Most of my sessions are on mobile, and if there is an app I make sure it comes from the official page. Support matters too: if they answer in a couple of minutes that is a good sign.
Hope this helps someone. Only play with money you can afford to lose.