If you want rewards, there is a fate in Eureka Pagos that has a Behemoth that drops the Hides (not 100% sure if its a special hide or the normal one), also Retainers can bring back Behemoth hides.

BUT

both of those things are brutally slow and or annoying.

The Fate maybe has a 10% chance and you still got to wait for weather and hope theirs players in there.
The Retainer ... well it pulls from a pool of like 2000 items ...

Join an Hunt Ls and keep an eye out for it. But as many said its 72h+ and unlike odin has no weather effect that can be seen from 5 different zones of which one is a major city.

Good luck.