I thought I'd already romanced Peebee as I got the scene in the escape pod on the Tempest, but after reading the above I guess not.
Then I've gone for Reyes next, because I believe he's also someone you can have an open relationship with. I just finished the quest 'Night Out' where you go to Sloane's party and he disappears, you go and look for him and you get a contextual opportunity to kiss him as a distraction whilst he's looking for a bottle of whiskey. The quest then ended with a cutscene of the Ryder & Reyes drinking, looking out onto Kadara Port.
My question is, is that Reyes romanced now? Because it isn't particularly conclusive.
I was planning on choosing PeeBee, Reyes, then Cora in that order, as the guide on the site here says Peebee and Reyes are open relationships?
Any advice for the best three to do in one play-through would be appreciated.