Mcaiden sits next to 5 phonetic neighbors — Aiden, Caden, and Kayden are the closest matches by sound. Most share Mcaiden's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of little fire"
"to heal, healer"
"gift of God"
"dear, beloved"
"modern coinage, possibly 'thankful lion'"
"strength, grace, given by God"
"narrow (place name origin)"
"supplanter, held by the heel"
"deer; graceful one (indigenous interpretation)"
"wise protector"
"blessed, happy"
"meadow land, fallow land"
"modern invented name"
"fair, beautiful"
"God has heard"
"long hill, ridge settlement"
"small stream, flowing water"
"state of being free, liberty"
"cloud"
"valley of willows"
"lord, have mercy (liturgical)"
Similar sound: These names share phonetic patterns with Mcaiden — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic/Irish origins, giving them the same cultural heritage as Mcaiden.
Rhythm: Mcaiden is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.