You can compare Casinos on this site. Looks at the recommendations that are given by the Guru. The thing is the same casino can work differently in another location as they have to adapt to the local gambling laws. For example, here in Germany I can't bet more than 1 Euro for a spin. When you play at the same casino you play the Thailand Version and by Thailand laws.
Just take your time and do a little research before you sign up to a Casino. Read forum posts here or on other sites. And if something feels of or strange when you have a first look at a casino site, don't bother with it. There are 1000s of Casinos,you the player can choose from. The next one is one click away.
And looking up the casino owner/management can give you useful information about the casino or casinos that belongs to it
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