If you want to BW start with BW101its at bonuswhores.com.
before trying to whore bonuses you must be a break even player. so make sure you game is up to it

I would also wait to deposit at most sites until you have at least 500 to work with. That way you can maximize the initial deposit bonuses that you only get the first time around. The Crypto sites would be one option I would look at first if you don't have the 500 to begin with. If you live in the US there are three that offer a pretty good bonus to start with and if you live outside the US there are 4 to take advantage of.