>>55905074Hmm. Can't really think of any in the same vein, and most femMC stories involve some degree of mental illness ala trooning/faggotry. I'll just shoot out a couple femMC isekais that seemed decent.
https://www.fanfiction.net/s/13913375/1/Unknown-ShoresSet in Orre, vigilante stuff.
https://www.fanfiction.net/s/13577472/1/A-Backwards-Grin A Mawile SI with Paul involved.
https://www.fanfiction.net/s/13268684/1/The-Adventures-of-Raptor-Trainer-The-Island-Challenge-Arc Echo from Jurrassic Park gets isekai'd into Alola.
If you're fine with a small degree of mental illness, then I'd say
https://forums.spacebattles.com/threads/time-to-be-a-hero-pok%C3%A9mon-legends-arceus-si.995815/#post-82221967 . If you click, you should be able to immediately recognize that it is indeed slop. A true blue isekai slop that makes your brain feel fuzzy from all the isekai mold growing on it. I don't remember it getting mentally ill in the story itself, but the MC is a guy who got isekai'd into Dawn's body. It doesn't play a significant role in the story and romance never happens, but still, it's there when it shouldn't have been.
I would have also said Pokemon Trainer Vicky, which isn't a trooninsert, but last I remember there was some lesbian shit going on. Once lesbian shit appears it ends up consuming the story, and coupled with this thread shitting on it for a couple reasons I decided to dip out, so I'm not sure if the lesbian shit ended up becoming prominent.