Idea to improve champion sorting on profile

I am working to unlock a chest with every champion I play. One thing that is a pain in the butt is that in the sorting options on the champion page, there are not options to see which champions you have unlocked a chest with. The closest thing I can do is sort by highest mastery, but even that doesn't give great accuracy because there are champions I have an S on and no chest, and others I have a chest with but no S. I think it would be nice to have a way to easily sort the ones with and without chests so you can know who to play next.

p.s I like the hextech crafting system.