The easiest way to make a profit from gambling is to follow an expert tipster in betting. You need to look around but you will win most of your bets if you can follow his picks. I see before people who can win over 70% of their bets with close to even odds.
I think that is really the expert tipster, they will sell their tips and will not share it for free. also the odds are always high. but maybe this forum as joca97 and carlespuyol good enough tipster.