Hunts are still great for gearing up - but provided you've just reached level 50, I recommend first going after your relic weapon - which would involve first clearing the main story quests, then talking to the guy that gives you the quests that unlock all the optional dungeons. Mostly, finishing main story quests is what really opens up most everything else endgame-related - hard mode/new dungeons, hard mode primals (and through those, extreme mode primals/coil), the list goes on.

That said, once you finish the main story, if you don't want to do something that's endgame oriented, there's always Hildibrand.