Can I name a child after a deceased grandparent if my sibling has a similar name?

Hi there! My grandfather passed away decades ago – so long ago that my sister was born after his passing, and given the female version of his Hebrew name. If I have a son, would I be able to give him my grandfather’s exact Hebrew name, in the original male form?

I read somewhere that it’s recommended not to honor a deceased relative if someone else in the family already has the same name – but I’m not sure if it would apply if the names are opposite-gendered versions of each other.

If this is frowned upon, what if I were to give him my grandfather’s name as his middle name? Would that be fine? Or is it all fine and I’m overthinking this?

My family is Ashkenazi, for clarification.