>>82353I second this ADiA rec. If you like old school megaten or first person dungeon crawlers in general, it's incredibly well done.
Mystia's Izakaya is pretty comfy, but it can become somewhat of a slog if you want to do all of the content. That shouldn't be an issue if you take a break between the main game and each of the DLCs though.
Luna Nights is another big one if you're into metroidvanias. Branch of Legend is also an option if you like deckbuilders.