Need nickname ideas for my son

My son is 3 1/2 months old and my husband and I still can’t settle on a nickname for him. He’s a junior (I am aware of this sub’s opinions on juniors so no need to mention how much you hate it thanks!)

His name is William Erasmus (T last name) Jr.

I don’t want to call him Will since that’s what I and everyone else calls my husband. Can’t call him Liam since that’s what one of his cousins goes by.

I really like Raz or Razzie but I can’t get my husband on board. I’ve also suggested Ilya which he didn’t like.

Husband suggested TJ but I had an exboyfriend with the name so I’m not really into it.

Any ideas would be appreciated!