Oh, plenty to choose from. I've both written and engaged with a couple of fanworks that enable really specific ships... So, in the interest of my own rotten little brain I'll say June<3<Handmaid. Frankly she could also hateflirt with the Condesce. More people should do blackrom June.

In general... June/Jasprose is cute. When I first finished Homestuck I enjoyed the idea of Junezee moirails (disassociation buddies) although that's complicated and Muse Calliope didn't help.

And Dirk/Rose/Rezi has got something weird and compelling going on, but I don't think that's rare. I hate them. (affectionately.)