I'd recommend poking around on Google first.  There's tons of websites with sports picks and break downs.  When deciding which one to use, think about what sports you wanna track and how in-depth you want them to go.

Out of curiosity, what kinds of sites have you tried so far? Was there anything in particular you didn't love or found lacking about their coverage and predictions? Knowing what hasn't worked for you might help us to give you better alternatives.