It can be difficult to know what a casino is like sometimes. You can read lots of reviews and even ask friends where they play, but until you look at the site yourself or even play the games, you will not know how it is similar or different to other casinos.
For example, if you want to play at a Canadian casino, then you might do a search to see which ones there are. You might read reviews to see which other people are the best and ask friends and family where they play. However, without actually visiting the website yourself, you will not know what it is like. There could be small things like the font and colour that make up your mind as to whether you like it or not. It might be to do with how easy you find the site to navigate or what range of games they have. You will find that each site has a different atmosphere because of the types of people that play on it. This means that they all have a different feel.
No one has enough time to try out every single casino online, well not most people anyway. Therefore you will need to try to find a way to reduce the amount that you look at in more detail. You could use reviews and recommendations as a starting point and take a look at the most highly rated and see whether you agree with that ranking. It is wise to look at websites first and you may be able to reject a few. See which you think will be the best and then play those. You could play more, but as many have minimum deposit amounts, that could be costly, especially if you find a lot that you do not like.
If you play a few sites and find one is perfect then you have achieved your goal. However, if you find that none really hit the mark, then it could be a good idea to have a go at a few more. It can be fun trying out different sites and comparing them and you may even find that you do well because of all the new player bonuses that you will be able to take advantage of. Just make sure that you draw all the money out of the various sites that you play or else you might forget that it is there and leave it by mistake.