Please help with a boys name???

The girls name was easy, we are going with Cassandra Rosalie, nickname Cas or Cassie.... but we cant find anything that either of us are absolutely in love with for a boy!

I wanted Charles after my grandfather but DH dosent like it, he said we could use it as a second middle name in the spirit of compromise....

He likes Tobias Rowen.... I love Rowen (or Rowan, or Roewan, not decided on spelling yet) but Tobias will forever remind me of the book/movie Divergent.... And the nickname Toby reminds me of the country singer Toby Keith, who I don't care for.... I know I won't always associate it with those things but I still don't love it....

Our last name is Fetz.... Can anyone help me find a way to love some kind of combination of Tobias Rowen Charles Fetz? 😵

Update: we have decided that Tobias is out.... Rowan Charles Fetz it is! Thanks guys!