Gaius is hot AF, even if he's a bit older. That's why if he was a bit younger, he'd be my definite pick.
Here's some art by someone named Lyn
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Emet, not only do I empathize with him at a personal level, but the dude loves theater, and I've always had a thing for arts. We'd be the type of couple where he writes a play, and I write the music for it or something like that lol. I'd also have him add fairy characters to every play. He's also tall.