Roscoe sits next to 5 phonetic neighbors — Rocco, Ross, and Romeo are the closest matches by sound. Most share Roscoe's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"roe deer forest, deer wood"
"prince, commander"
"spear servant"
"of the birds, bird-like"
"one who sets free"
"raven, crow"
"gift of Yahweh"
"home ruler, lord of the estate"
"vision during sleep, aspiration"
"uncle"
"from Laurentum; laurel-crowned"
"from Rome (Rum/Anatolia)"
"of the Dorians"
"ancestor descendant"
"little fire"
"swift warrior"
"modern invented name"
"ocean person"
"descendant of the red one"
"the fifth"
Similar sound: These names share phonetic patterns with Roscoe — 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 Roscoe.
Rhythm: Roscoe is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.