Definitely give the demo a spin. The tone of the story is very different than COOT, but the characters are equally as endearing and there is lots of humor mixed in with the drama. (NTY has an underlying mystery that connects everything.) Haru, the MC of NYT, is totally different than Mark though, almost polar opposites. I don't want to say anything else due to spoilers but you'll see when you play.
Yeah, the cast is top notch IMO. (And I'm totally with you there on the body types, these dudes are right up my alley~)
But just so people are aware, the seven stand alone mini-routes/dates are going to try and focus more on different physiques and age groups. And Obscura has mentioned in the past, than if any of these Bro Finder dates prove to be really popular, she might feature them in a future game.
Right now I'm leaning towards Beau (or Roman) too. I'm pretty sure it won't be Penny, or any of the other female characters, but It'll almost certainly be someone already in the game I imagine, otherwise she'd have to do a lot of reprogramming... but who knows? It's pretty dang exciting either way.