No. There is no way that you can consistently win money while playing in an online casino. If you are lucky you can win a lot of money but there is no game that allow you to get an edge over the casino. If you play in a real casino you can count cards or play full pay video poker machines that has a return rate higher than 100%. You can not do anything like that in an online casino. If you want to play a game where you can consistently win money you should consider playing online poker instead.
Online poker allow you to play against other people and allow you to win a lot of money as long as you are a better player then the players you play against. You can win a lot of money if you are dedicated enough to become a good player. Top professional poker players win millions every year.