You can either look up the IPAT books, which have 9-ball layouts for scoring purposes, or you can find (most) of them either on youTube or pool.bz. Pool.bz has a lot of layouts from random people.
you could also use their software and generate a break layout, take it to the table and see how you do on the table versus how you planned it in your head after looking at the new layout. Which is no different than just playing 9-ball by yourself, with the addition of having a reset-point.