Being a great communicator and a generous lover is more attractive than most of the considerations discussed here, so far.

Many the challenges of being ace or on the ace spectrum in a relationship can be overcome by regular use of phrases like:

“Dear, would you like a handjob tonight?” and “I love the look on your face when I fuck you. Let’s fuck tonight.”

Just be sure it is what you really want - it would be kind of silly to put in the needed effort if it is not somehow also serving your needs.

Great communication and generousity are incredibly attractive in a sexual partner, and both can be cultivated by anyone who chooses to put in the practice.