Help with baby boys name!

Just an FYI I'm not pregnant but we're planning for baby #2.

If its a girl we already have a name picked out but for a boy it's more challenging.

I always wanted to name our son after my husbands late dad. Guillermo but we cant since my nephews name is william (English Verizon of the name.)

I've been trying to rearrange the letters to see if I can get anything out of it but I can't. His dad also doesnt have a middle name so that doesn't help either haha. Can anyone help trying to figure it out?