How did you pick the middle name?

For my son we did both of our fathers names as his middles names. Now that we just found out that we’re expecting a girl, I’m not sure what to do. Both of our mothers are present in our lives but mine abandoned me my whole life and I only just actually met her a few years ago, she’s still won’t acknowledge the hurt of being left which causes issues with our relationship. His mother disrespected me,my parenting skills&our relationship a ton of times and I’m not close with her at all bc of it. I definitely don’t want to put either of their names as middle names. What are some meaningful options that you’ve done? I’m thinking of putting mine as one but it’s a tradition to always have 2 middle names where I’m from.