Both of these have leads which are complete opposites in their studies, but rather quickly become friends and begin to like each other throughout high school, but after graduation the leads lose contact only to be reunited again later. Both are very very good though they have slightly different vibes and formats, but still totally worth the watch!

-both have sweet, fluffy scenes
-simple, easy to follow
-both involve college
-the FL is adorable in both
-both have famous ML
-not too dramatic in terms of antagonists
-secondary male lead is interested in FL in both
while the two are not particularly the same by any means, they are both easily enjoyable and have adorable scenes between the ML and FL as they get closer and closer :)