au: space	futurefic	fake relationship	au: crossover	unrequited love / pining
unexpected friendship	bodyswap	amnesia	au: other	au: alternate gender norms
forbidden fruit	au: fantasy	FREE ★ SPACE	time travel	genderswap
against all odds	au: royalty / aristocracy / feudal	trapped in a dream	poor communication skills	character in distress
telepathy / mindmeld	bets / wagers	trust and vows	mind games	matchmaker

Some of these will just about write themselves I think :o