Which chests should I sell vs open?

This is getting kind of ridiculous…some of these chests I’m waiting to merge when Bunny asks, but a lot of them are just top level chests that I haven’t known whether to open or sell. I bought gems once but I don’t want to make it a habit, and in levels you gain them WAY too slowly. What do you do with all of your chests? And which ones are actually worth saving to eventually open?

This is getting kind of ridiculous…some of these chests I’m waiting to merge when Bunny asks, but a lot of them are just top level chests that I haven’t known whether to open or sell. I bought gems once but I don’t want to make it a habit, and in levels you gain them WAY too slowly. What do you do with all of your chests? And which ones are actually worth saving to eventually open?