Help-Boy names?

Calli

So I'm Having a horrible time picking out names to even add to a list to pick from for my son. I'm 20weeks4days and need help because my bf isnt the biological dad. Long story short the biological dad told me to abort then blocked me on everything and hasnt been in contact since. And my current bf wants to use his last name but we've discussed that we cant use his last name since I'll be going for child support, but when we get married years from now like we want to then we can maybe change it to his.

Since it's another boy I want to use Micheal as a middle name again so it would be,

_______ Micheal Krein. My first sons name is

Holden Micheal Krein, so I want somthing that sounds good with his name but doesnt sound to similar to his name.

*pic of my rainbow baby boy for attention*