With Cuba about the only isles (seems to me, just from reading) worth considering if gay pleasures are your main object.
NOTE for the mentioned germans (and belgians, french etc.); MOST=nearly all of the cheap-o charter-flights (often with cheap all-in resorts) are to the north of this island, which is some 4-5 hrs by wacky local bus away from the capital So. Domingo. Though there should be luxury direct nonstop tourist shuttles too. Direct flights from west-EUR to So.Dom are rare indeed, if they exist at all.
Most of the usual reports/guides still warn sternly about the high rate of criminal activities (hold-ups and robbings).
With a fair lot of mostly dominican ladies coming in Eur for work (the via-Spain into Schengen route works pretty fine for them) one may wonder why the males do not follow up.