I like the way they sound but the
Kobe spelling is confusing to me. I would use
Coby or
Koby. As for
Colby, I like this spelling more than its variants, which I don't think they are popular. As a child, I always misheard
Colby as
Coby.
https://youtube.com/@MarioDrama632 or
https://youtube.com/@Objects_2763 :3