Need boy name help

So my SO and I have 2 kids and one on the way. We have a girls name picked out but he hates all the boy names I picks and I only kinda like or absolutely not to his choices. So for reference these are our names and our kids names

Mom: Joshlyn makenzie

Dad: Christopher Sean Wilkins

Kid 1: Quinlyn Makenzie-Ray

Kid 2: Rhaelyn Makenzie-Rose

So if it’s a girl they’d be Roselyn Makenzie-???? ( we haven’t decided on the second middle name but it’d have to be 4 letters or be able to be spelled with 4 letters and sound good with lyn

And for boys no clue at all we want something different like the rest of us...I want Gene somewhere in the name now we both like the name Elijah or Eli but I don’t like it alone I feel like we could use that to make a new first name somehow? And if u have any cool tradition starters for boy names that match dad plz