Love sawyer! With either middle name
Remy is my favorite from your list!
Love Sawyer! Sawyer Angus or Sawyer Huon works. I don't like Angus (it's my cousin's dog's name), but maybe that's just me, so Sawyer Huon would be my choice!
However, if your sons are Isaac and Asher, I would chose a name with a different ending. I love the idea of Tobias nn Toby. I also like Remy. Isaac, Asher and Remy is so cute!