What about the BOMs that run in magazines? (British) Patchwork and Quilting had a nice one this year. It ran from the January issue until December and the only cost is the price of the magazine (plus fabric which you might be able to use from your stash).
The Craftsy suggestion is good too. You can join one of their free classes to see if you like the format. If you like them, be on the lookout for Special Offers with money off.