Sirach sits next to 4 phonetic neighbors — Cyrus, Silas, and Sarek are the closest matches by sound. Most share Sirach's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Son of Sira; wisdom"
"possessing unlimited power"
"shelter, hut"
"cold, icy in manner"
"thunder, of Thor"
"intelligence, mind"
"hand"
"twin (variant of Tavis/Thomas)"
"golden, made of gold"
"noble part, noble descendant"
"dear one, beloved by the pool"
"one who lives near a spring or who springs"
"from the hall or manor house"
"house, dwelling (French-inspired)"
"modern invented name, creative combination"
"Open land, wide expanse; one who ranges freely"
Similar sound: These names share phonetic patterns with Sirach — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Sirach.
Rhythm: Sirach is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.