If you liked the Andromeda Stories manga, the Anime-Planet community thinks you'd like:
(Rec applies to the earlier volumes of both, later volumes are vastly different)
Marginal and Andromeda Stories are early-80s science fiction manga from extremely influential shoujo mangaka. Both are soft sci-fi, and tend to blur the distinction between science fiction and fantasy. Both are set in a desert dystopia loosely modeled after a mish-mash of Middle Eastern cultures.
I liked Marginal much better- the story and characters seemed better developed/less generic, while Andromeda Stories was kind of hokey (it hasn't aged as well).