Collins sits next to 4 phonetic neighbors — Collin, Colin, and Ellis are the closest matches by sound. Most share Collins's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Colin"
"elaboration of Ahmad (most praised)"
"God saves, salvation (Hebrew Hoshea)"
"lord of the marches, march warden"
"fiery one"
"song, joy"
"God has healed"
"prince, little raven"
"third in line"
"modern invented name, possibly meaning sky or zeal"
"Yahweh is my power"
"one who builds with stone"
"graceful, elegant"
"place at the bow-shaped hill"
"son of Rhys, ardor and enthusiasm"
"horseman, cavalryman"
"one who lives by rivers"
"son of William"
"servant, attendant"
"liberation, journey"
"modern invented name (no traditional meaning)"
Similar sound: These names share phonetic patterns with Collins — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish patronymic origins, giving them the same cultural heritage as Collins.
Rhythm: Collins is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.