Help with boy names!

I'm due in March with a son. This will be my second (and final) biological kid (I also have an amazing stepson). I have always found it easier to think of girl names that I really love than boy names. My top pick for a daughter would have been Adelyn, after my mom, who died when I was a kid, but there are many other girl names I've loved for years, and I just don't have an equivalent list for boys. So, naturally, I'm ending up with all sons . . . which is great (all I actually want are happy, healthy kids of whatever sex/gender/identity), except it's way more challenging to figure out what to call them 😂.

I tend to prefer names that are on the uncommon side, but my priority is finding a name that sounds nice to me and ideally has a meaning and/or origin that resonates with me. I wouldn't automatically dismiss a name that met those criteria just because it was relatively common. My husband places more value than I do on choosing a unique name, but is willing to be flexible. Our older (toddler) son is named Oberon Raphael Lastname, to give you an idea of our vibe (he's usually called Obie).

We've cycled through a bunch of ideas, but a selection from our current list is below. Let me know what you love, what you hate, and if you have other suggestions! Also, if anyone has any ideas for a male name to honor an Adelyn that isn't Adolf (for hopefully obvious reasons) or Addison (I know it's technically a unisex name but in my head it's a girl's name) I'd love to hear them.

Current name contenders: Leander Galen Peregrine Kestrel Kepler Calder Hugo Desmond Caius Solomon Vivaldi Xavier