I always get Mac, or more specifically, Lindsey vibes from one of my favorite bands American Analog Set and the frontman's side project Wooden Birds, in terms of songwriting & the minimal, quirky-pop aspects of the production
https://www.youtube.com/watch?v=RKoMb4bnlZk
https://www.youtube.com/watch?v=JB3ReirpMWc
My brother is a big Death Cab For Cutie fan, I hear some Mac in them for sure. I love Phoenix (so does Lindsey!) and I hear a lot of him in them as well.