Boys names that have the nickname "Mac"

My husband and I are expecting our second child in May. We are struggling this time around (naming our daughter was so easy!)

We think we'd like the nickname Mac / Mack for our boy but not sure on full names. We've thought of Malcolm so far lol.

Mackenzie is out as my good friend's daughter is named Mackenzie.

Send your suggestions, please!!

Edit: Woah, so many suggestions! Thank you, everyone. I'll read them all to my husband and see what he thinks!