I feel like a lot of recent skins have been event focused with big cohesive skin line stuff. They've been cool and all, but sometimes you need something a bit smaller.
I'd love if we could get some think like more "day job" skins. Grab CarnivalKnights and tell'em "hard times have befallen runeterra, and champions are now getting side jobs" and make a skin out of the best/funniest thing(s) they think of per session. Fry cook velkoz, wine-ager zillean, coal miner quinn (with canary valor!), I don't think that the champion is the big thing (or even price, not looking for a legendary skin or something). I just find league to be a bit more fun with skins like that running around the map!