[name_m]Welcome[/name_m] to Nameberry!
All your options are lovely!
[name_m]Leo[/name_m] - I love the wholesome sunniness I get from Leo—he makes me so happy! [name_m]Vincent[/name_m] and [name_m]Leo[/name_m] are adorable. I wouldn’t automatically assume Italian for [name_m]Vinnie[/name_m] and [name_m]Leo[/name_m]? It’s mainstream enough now that I don’t think it feels strongly tied to one culture anymore.
[name_m]Leon[/name_m] - love [name_m]Leon[/name_m]! It reminds me of the lovely dedication in Le Petit [name_m]Prince[/name_m] and I imagine the loveliest little one with a sunny personality and a caring heart. This might be my favorite for you!
[name_m]Grayson[/name_m] - he’s close to my heart as he’s a very special family name for me, but [name_m]Vinnie[/name_m] and [name_m]Sonny[/name_m] sound a little similar for me, and I like [name_m]Leon[/name_m] paired with [name_m]Vincent[/name_m] more myself.
I don’t think you can go wrong with any of these honestly, but I would probably rank them [name_m]Leon[/name_m], then [name_m]Leo[/name_m], then [name_m]Grayson[/name_m]. Good luck!