Otis sits next to 4 phonetic neighbors — Otus, Otto, and Boris are the closest matches by sound. Most share Otis's Germanic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"wealth, fortune"
"wise counselor"
"heart, mind settlement"
"son of the firebrand (short for Tyson)"
"consecrated, increased"
"large homestead, great settlement"
"strength, brave"
"from the settlement by the stone"
"home power, ruler of work"
"beam of light"
"son of Jett, black gemstone"
"elder, more important"
"son of John (via Jack)"
"open land"
"increase, growth"
"from Scotland, a Scotsman"
"from the city of Dax"
"protector of people"
"youthful, downy-bearded"
"great chief, eminent lord"
"shallow river crossing"
Similar sound: These names share phonetic patterns with Otis — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Otis.
Rhythm: Otis is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.