There are a lot of great fighters out there that are not in the UFC. One for example is Aoki from Japan...another one is Joachim Hansen...phenomenal fighter...obviously top ten...top five...Melendez is out there....Josh Thomson is out there.
Of course Huerta is currently a free agent, but is highly sought after even after coming off of two consecutive losses in the UFC. His fights are always action packed, the guy has skills, and he has Mexican descent. It'll be interesting to see who he signs with, and he's out in Thailand trying to improve his Muay Thai skills.