gl where one of them is a princess? ヾ(☆▽☆)

This link might help you

https://www.mangago.me/home/mangalist/1403564/?filter=&page=1

i don't read isekai but maybe you should look into them!

i reccomend Will We Live Happily Ever After?

https://www.mangago.me/read-manga/the_magical_revolution_of_the_reincarnated_princess_and_the_genius_young_lady/