They Say I Was Born a King's Daughter
Class ga Isekai Shoukan sareta Naka Ore dake Nokotta n desu ga
Isekai Maou to Shoukan Shoujo Dorei Majutsu
Sakasama Cranberry
I've read it some time ago. It's a pretty sweet story about this girl going to the future and finding out her former "rival" is now her boyfriend. Well, they aren't actually rivals, they just fought a lot... It's actually pretty short. The art is cute. The end is good.
Souzai Saishuka no Isekai Ryokouki
Isekai Yakkyoku
Very interesting. It's amazing how accurate the information is to match the medical facts. From the formulas, to the medication used, and the symptoms of each disease. The author really did his research. That's how you should really use your knowledge from previous life. Lately is easy to put a nobody in the isekai world and make him use simple mechanics from games and RPG, everyday knowledge from a more advanced world or just by being self aware OP. This manga is the one you say: that's how you do an isekai genre!!!
The Strongest Girl