There's some amazing stuff on Tsugunai by Mitsuda. But then, IMO he's the best game music composer of all time, so I could recommend just about everything. I like to recommend Tsugunai, though, since it doesn't seem to get a lot of love. Chrono Trigger/Cross and Xenogears/saga are great, of course.
Kinda weird to see Xenogears getting cited as GOAT though, and even Cross. Those soundtracks are good, but... idk, best of all time is a little much. I guess that's just opinions though