While Fushigi Yuugi is a reverse harem, it's also a sweeping adventure to save the world.

Absolutely gorgeous soundtrack too.
FUSHIGI YUUGI OST - FOR THE ONE I LOVE (ballad version) - YouTube
FY Character Songs - Inoru Youni Anata o Aitrouteru - YouTube
FY Character Songs - Dengon - YouTube
Fushigi Yuugi soundtrack - Houkou (Roaming) [HQ] - YouTube

Overall i don't know if I would call it a good series but I enjoyed it. It was my introduction to shojo.

Also so many hunky men.