Names like Cassian and Lucien?

My husband and I are expecting in July, and we aren't planning to find out the gender ahead of time, so we're trying to come up with a short list of both girl and boy names. And, as for many people, boy names are hard for us! Two names we both actually like are Cassian and Lucien, but my husband's a Sarah J Maas reader and says we can't use those names because they are characters in ACOTAR, and also the names are apparently super popular among fans and so they'd be likely to be lumped in with other fandom babies in a few years, like all the Aryas and Khaleesis after GoT. So help me out, can you think of other names that have a similar vibe to Lucien and Cassian that we could consider? I tend to like "pretty" boy names and names with dual vowels together, and neither of us are into common "traditional" names, if that helps. Thanks!