As for larger wrasses...altho Thalassoma sp. SEEM like they'd make good tankmates for lions, they're really boisterous and once they mature, I've seen them get plain nasty. In fact, IME I kept a banana wrasse (T. lutescens) and an adult fuzzy dwarf that was bullied to the point of starvation (the fish never turned around even after I 86'd the wrasse for bad behavior). The wrasse was already on thin ice, and the lion clinched it for me.
As for some of the other larger genera, such as Coris, Halichores, etc., I'd use caution and add the wrasse after the lion is well-established. Additionally, a large setup would go a long way in avoiding conflict as wrasses are very "busy" swimmers.