We’ve actually done that here on FYNB. Not everyone, necessarily, but a few. Here are the posts for each house. If you check the notes you can find some good discussion/meta on why these choices were made:

Gryffindor | Hufflepuff | Ravenclaw | Slytherin

If you like our choices but there’s a character not covered in these posts that you’d like to see Sorted, send us another message and we’ll be happy to Sort them for you!