Long time lurker here, so here is how I pick an online casino these days. After a few bad experiences I stopped trusting the big banners.
First thing is the licence: check who regulates the site, and if your country is on the allowed list. Then payments: crypto is a plus but not a must, and cashout times should be listed up front.
Never judge a site by the bonus alone. Anything above 40x rollover is a red flag for me, and the bonus usually expires in a week or two. A decent independent write-up with the current terms is here Craybet so you know what you are signing up for.
I play almost only on my phone, and if there is an app I make sure it comes from the official page. Test the live chat before depositing: slow or scripted answers usually mean trouble later.
Hope this helps someone. Treat it as entertainment, not income.