Looking for a new pre-written 5e adventure? Logan Reese, aka Runesmith from YouTube and the designer of Stibbles' Codex of Companions, has teamed up with Hawaiian values consultancy Purple Mai'a and Eldermancy for Sunken Isles.
There are more than just pre-written tavern locations in the guide as Eldermancy have also created characters, items and monsters associated with each location. There's even new mechanics.
The book offers up more than 70 new companions and the campaign adds in some merch. It's doing well.