Boy names??

I find it a bit difficult choosing boy names and middle name that go with our last name Rivera. With my 1st son it wasn’t difficult because I loved only 2 names and his name is Elijah Nikolai. Now we are having a 2nd boy and I really love 4 names but I cannot decide if these names are a first or middle.

(Juh-Vaa-nee)

-Jovani Alexander (hubby doesn’t seem to like the middle name 👆🏼)

-Myles (either first or middle)

-Leon (either first or middle)

- Nathaniel (either first or middle)

Any suggestions?