I recently came across a cool selection https://www.thebulletintime.com/trend/ranking-the-most-popular-card-games/ , it is laid out right on the shelves. The top ones are, of course, poker (especially Texas Hold'em), blackjack and baccarat. If you want something simple, but exciting - War is perfect. And if you like calculating moves, I advise you to try Pai Gow Poker - it is slow, but interesting. Well, Blackjack is a must-have: the rules are simple, the chances of winning are high, and you can play against the dealer. Read the article - I'm sure you'll find a game to your taste. Good luck!