Two of my best friends in high school were Sam (Samuel) and Evan, so I get warm fuzzies about those two together. Benjamin is the only other one from you list that I would think to put with Taylor and Evan.
My favorite from your list is Cole, but I think Benjamin goes best with Taylor and Evan. I wouldn't put too much emphasis on this though, since the siblings won't always be together.
Married 10/4/2014 (10-4, good buddy!) Baby Boy #1 born 1/9/17 Baby Boy #2 EDD 11/4/18
"It's when you know you're licked before you begin, but you begin anyway and see it through no matter what. You rarely win, but sometimes you do." -Atticus Finch, To Kill A Mockingbird
I like all of your choices except for Hayes, which just seems like a last name to me. If it holds special meaning to you, I'd suggest using it as a middle name.
Re: Boy #3 Name Ideas
***TW****MC mentioned & BFP mentioned***
TTC#1 since July 2014
AMH 0.1, DOR, Poor responder
Moved to Prague, Czech Republic for IVF
DE attempt in Czech Republic!!
March trip to Prague canceled due to Pancreatitis.
Headed to Prague April 30
3 different donors resulted in 1 PGS tested embryo and 1 fresh embryo
BFP on 5/15/16 at 5dp5dt
My blog: www.wearethehammitts.blogspot.com
Baby Boy #1 born 1/9/17
Baby Boy #2 EDD 11/4/18