I'd love Artemis as a canon romance option; I don't expect it but I hope fandom won't let that stop them. She wears cloth (?) around her waist that looks the same as Melinoe has around her leg and I would be extremely surprised if that was a coincidence.
Edit: nevermind, Hecate and Selene have something that pretty much looks the same, it seems it might be some kind of, hm, community symbol? Something witch-related? Nemesis does not as far as I can see...

I have only watched a few hours of technical test and am already interested in half a dozen ships, this will likely only get worse ^^