I'm on my crackship rarepair bullshit again orz.
Harvest & Sun my beloveds
Aside from the absolutely mind-boggling whiplash Harvest would have with the realization that Sun is not only competent in a fight but also scrappy as all hell, I just think it's neat. Robot built to fight and kill who learns to love and slow down and appreciate small beauties X the robot who spent his earliest formative years crushed under thumb after thumb until he fundamentally cracked under the pressure and rebuilt himself into a form that balances his desires for kindness with his anger and need to protect others.... Mm chef kiss.
It's all the appeal of Bloodmoon/Sun without any of the underlying moral complications, with additional layers that I do think Harvest would he far healthier than OG Bloodmoon.
Plus it's just... it's so good, man. The shenanigans, the heart melting experiences, the hijinks, the ragebaiting they'd mutually do just for funsies and their own natural temperaments would just click really well... mwah
Also just... Harvest tries with his dimension's Evelyn, even with Dazzle to an extent, and I think he would be hesitant about TSAMS Dazzle... but he would eventually warm up to her. And unironically I do believe he'd be just as protective of her as he is his own Evelyn. When he learns the circumstances around her existence, I think he would struggle with the notion that a the him of TSAMS could or would do any of that. And if one variant could, is the capacity the same across all iterations...? It's only when Sun sets him down to talk it through and compares himself to Day that it occurs that the reason they are VARIANTS is because they vary.
Plus just. Consider the shenanigans.
Moon tries to pick at Sun for dating a man - Harvest dead pans "what is a gender" and doubles down on asking about it until the teasing stops. Whether it's for that very reason or if he's genuinely asking is up for debate.
Sun goes over for a date and Night is still free roaming, lurking and quiet, and Sun immediately is ready to hard broil a bot - Harvest either stops him or is low key swooning while Earth and the others have to be like "wait no he's cool now".
Sun and Folly content... I think she'd trigger a lot of his trauma, yes, but also she's more easily distracted. I think after a while, he'd grow to like her well enough if not love her (Exposure therapy/hj). She absolutely would be the type of person to go "come along now, auntie Folly will teach you all about interrogation!"
Also Moon would be so conflicted, I bet. After the initial gay jokes are out of his system, I think it would really hit that his twin is dating a dimensional variant of Bloodmoon, and while the TLAES squad is chill enough, he's got CONCERNS. ((Plus imagine him and Andie both being like "hold up wait a minute-" and it devolves into comically stalking Sun and Harvest on a date. I'm talking bad disguises, hiding in a bush, the works.))