Grouped by pronunciation. Each of these 152 spellings was given to at least 5 baby girls in a single year. Makayla is actually the most popular spelling overall.
Yeah there are a few names that become "unisex" only in the aggregate, with differently gendered usage across cultures-- Alexis is another I can think of, it's a girls' name in the US but a boys' name in most other countries.
I have a follow-up post that covers "common" unisex names, which I arbitrarily defined as names with at least 25k births for both sexes. This one does have more of the names you were probably expecting to see: https://nameplay.org/blog/common-unisex-names-by-gender-rati...
The ranking for the linked post is based on a diversity index, which scores most highly for names closest to an exact 50-50 split. Hence framing it as the "most non-binary" of the unisex names. Admittedly this is more a statistical curiosity than a reflection of everyday life.
I have been working on an algorithm to combine names with pronunciations that overlap, based on ARPAbet phoneme representations from CMU dict + generated by LLMs. The data is still messy, because "creative" spellings are hard for LLMs to deal with: token overlap with primary names is frequently low, and spelling variations only exist because English has such a lax approach to phonics to begin with.