Mick sits next to 5 phonetic neighbors — Nick, Rick, and Dick are the closest matches by sound. Most share Mick's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"who is like God?"
"forest, wood, timber"
"hay valley"
"radiant, brilliant"
"foot soldier"
"of gold, golden one"
"estate on the River Aire"
"rejoice, be glad (via Gaius/Caio)"
"descendant of Brocán (little badger)"
"pool near the elm tree"
"gracious, merciful"
"holy one (of Dewi/David)"
"bright heart, brilliant mind"
"of the night"
"swift, quick"
"my God is Yahweh"
"brother (informal)"
"rock (via Peter)"
"the unseen"
"mortal being"
"dark one"
Similar sound: These names share phonetic patterns with Mick — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Mick.
Rhythm: Mick is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.