@sweetenerss Okay I thought I had a lot but not that much in english actually so here's some that you might like:
Supernatural fic :
-The runt of the litter by pieandthewinchester (super talented, there is no real plot to it it's just dumps of stories but they are really good, and you should go to the latest chapters that are better than the first one)
- Definitely a Winchester, and it's sequel Definitely a hunter by sleepyhalo (amazing I loved it)
Harry Potter fic:
- Muggle by TinaX2 (So this author is a genius, they wrote 4 books on HP and you can read them seperately but they are actually linked to one another, so if you read book 2 before 1 it's alright but you will know things that changes your experience of book 1, it's really cool.)
- Sweet melodies by lalaladyplum (Just a cute love story)
-Anything on the marauders ahaha
Marvel/Avangers (don't know if you're into that):
- Young god/Warrior/Heroine by -marvel (The third one is not over, but honestly it's really good, well-written and the story of the protagonist is great , a bit cliché but great.)
-A twist of Marvel by GeneralOfLoki (won the wattys, it's pretty cool and the character really has an impact on what happens in the movies)
Hope it was helpful and not too long :)