Hunt groups are more by time, not place, since you pretty much can go anywhere once you’re linked up to a portal network.
Most of the hunts that happen regularly nowdays should be listed at the end of this post if you’re interested. They announce through both the discord hunt bot and though ingame communites and events chat, you just need to find where it happens and be there on time.
Also, @HOST has a sov planet with a portal to all 64 regions for exp if you need a quick boost in levels for skill points to be able to do stuff on high tier worlds, just grab 2-3 teaching pies and head there.