Just an advice if u wanna sort your reading list again, make separate lists for want to read/already read. Keep the original lists untouched incase they are still fixing and u don't wanna mess up the scanning. Also make sure u rate those once u add them to lists. And make a backup list elsewhere for already read ones if u want.
I think of every BL mangas I personally enjoy as peak so this is peak. Yippee.
Btw I haven't watch heartstopper but watched 某某 and it is PEAK.