Guilds

There's four different islands with four deities, the Tapus, guarding one each. The island deities founded four guilds, each having their own specialty, but being spontaneous Pokemon who can't sit still in one area they would soon relinquish their leader status to four different Pokemon of their own choosing. 

Koko's Guild is currently Wartortle's Guild. They focus on research on myths and legend. They also do treasure hunts and share a trait with Fini, doing bounty hunts.

Fini's Guild is currently Mienshao's Guild. They focus on bounty hunts. They share a trait with Bulu, finding lost items.

Lele's Guild is currently Lurantis' Guild. They focus on healing with Pokemon being taken to them. They also do rescue missions and share a trait with Koko, doing treasure hunts.

Bulu's Guild is currently Lycanroc's Guild. They focus on trades and transportation. They also find lost items and share a trait with Lele, doing rescues.