Review Detail of 9TailedFoxFire in Ideas I want to read(updated as I have them)

There no powerpuff girls fanfic (image them being a throuple) or another one would be their big sister who is stronger than them but has trouble controlling her powers. You could make it so she can control them. Obviously, they are pretty op regardless of what you choose. It's gotta be multiverse travel, though. Otherwise, fights wouldn't be interesting

There are no fanfics (at least on here) about Elsa from Frozen as a protagonist or at least someone with her power

There's plenty of Kim Possible fanfics out there, but I haven't heard of one where the MC is Shego, so there's an option

If you're into some furry stuff, there's Tigress from Kung-fu Panda, who could be a MC maybe give her a fighting system or since her world also has Ki reincarnate her into DBZ

There's only 2 My Little Pony Fanfics and those MCs are male, so yeah, another idea, and since in the show they could take on a human form, you could give them shape-shifting powers

I once read a Fanfic about an Exo MC from Destiny 1 and 2 who had all the exotic and legendary weapons as well as a ship of his choice. His Eco body was adaptive to metals as it he could absorb them and make himself stronger. He also had synthetic skin and working sexual organs, but it got out of hand, and he got too op way too fast. I think it got dropped, but anyways you can do something similar since it's like a pure tech system at the start. Make it a cross between My Life as a Teenage Robot and D1 and D2