I’m not sure what interests you most (or if you’ve already done this), but one thing I’ve always enjoyed is trying to tackle all of the shrines. Each of them has their own puzzles that’s different enough to keep me entertained, and the access to skip travel points is great for whatever else you might be doing.
You can also try to get korok seeds but those are sometimes even more annoying than the regular side quests
Edit: Sorry for the double comment, my app was glitching
I’m not sure what interests you most (or if you’ve already done this), but one thing I’ve always enjoyed is trying to tackle all of the shrines. Each of them has their own puzzles that’s different enough to keep me entertained, and the access to skip travel points is great for whatever else you might be doing.
You can also try to get korok seeds but those are sometimes even more annoying than the regular side quests
Edit: Sorry for the double comment, my app was glitching