Matt Brown, Gunnar Nelson, Nick Diaz
Those 3 names are all very suitable choices for me. I think he'd struggle badly against Nick Diaz, but it is possible that if he fought smart and tore up Nick's legs very strategically that he could win a decision. It would be a fun fight none the less though.
Brown and Cowboy would be a barn burner for the ages. Enough said.
Him and Gunnar Nelson would be very interesting technical battle I'd like to see play out. I think Cowboy's chances in this one would be the greatest as Gunnar fights sort of timid sometimes and keeps his hands down to much and ends up taking shots that he shouldn't. Cowboy will make you pay for doing that to often. I think that Cowboy should be able to win a decision in this fight.