Bennett and Rowan are your best options, though, really what do you mean by unique? Because none of your options are unique (except maybe Gaines, I guess he could be the swolest gym rat)
Do you mean not traditional? Or do you mean rarely used?
I don't think any of the above are traditional or commonly used other than rowan and Bennett. Which is one thing that does bother me a little about those two. I have heard of several other babies with those names. Unique=not heard of often
Gaines and Stone are probably the only ones that aren't trendy but honestly they are both pretty bad and don't present well. Dash, Wilder, Bennet and Rowan are pretty trendy.
uncommon and non trendy names
Rocco Trent Crispin Wolfgang Vaughn Lachlan Leland
The Crew I know is sibling to Steel. I like Rowan... also suggest Cash, Maddox , Cedar, Sterling. I'm more into classic and unique so I don't know if you will like these but maybe Arlo, Jasper, Holden, Silas?
Re: Baby boy names
Do you mean not traditional? Or do you mean rarely used?
Unique=not heard of often
uncommon and non trendy names
Rocco
Trent
Crispin
Wolfgang
Vaughn
Lachlan
Leland
Trendy names that pair with Crew
Hayes
Anderson
Sebastian
Weston
Brody
Most of your other names are treny and over done. Especially Rowan on a girl.......yawn!