Sky sits next to 3 phonetic neighbors — Kai, Skye, and Sly are the closest matches by sound. Most share Sky's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sky, heavens"
"badger settlement"
"old town, settlement"
"son of Rand, son of the shield-wolf"
"honest, true, trustworthy"
"son of Jet, swift one"
"trickster, shapeshifter"
"wooded land"
"fortunate, blessed"
"jaybird + euphonic suffix"
"yew warrior, bow warrior"
"crown, wreath"
"son of Otto, helpful"
"scholar"
"descendant of the courageous one"
"modern American creation"
"descendant of Ceallach"
"little rock"
"high settlement or estate"
"raven, crow"
Similar sound: These names share phonetic patterns with Sky — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Sky.
Rhythm: Sky is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.