He can beat most of the division. I'd definately favor him over Poirier, Gaethje, current Tony.
I think Oliveria, FKL, and Islam are hard fights, especially Islam. Chandler may be tough to.
I'd be intrigued with Conor vs Hooker. Both are 2-3 round fighters and good strikers in their own right. Conor's a better striker, but Hooker is pretty damn durable and fights until he can't. Plus Hooker would have height and reach advantage, and unlike Cowboy, Hooker is in his prime.
RDA vs Conor is another good one, but RDA is getting too old. RDA is very good at mixing it up, we've seen him take down and outgrapple natural WW's, so with that gameplan he stands a decent shot against Conor. RDA is also a decent striker.