Holy crap that's my uncle's name! He didn't have a red beard by any chance, did he?
Seriously though, this is the first time I've ever heard of anyone besides my uncle being named
Trygve. Personally, I think it's kind of charming, but that, I think, might just be personal bias. :-p
As for combos, I have a hard time picturing anything non-Scandinavian for a middle. That said, a "normal" English middle name might make a nice contrast. Thus:
Trygve JonasTrygve JosephTrygve Allan
I reject your reality and substitute my own!