>>281991699
Please Save My Earth has got to be the platonic ideal of this set up. There's even an extended scene where the female characters have a meta conversation about their tastes in partners. The entire manga is basically a set up for everyone's hang ups and why they fall in love with each other.

It's also just a very good shoujo. Remarkable in balancing some familiar melodrama with interesting writing and the zany reincarnation plot. More anons should read it.