Simcha sits next to 3 phonetic neighbors — Simka, Simcha, and Semcha are the closest matches by sound. Most share Simcha's Hebrew-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"joy, happiness"
"supplanter, one who follows at the heel"
"noble, refined"
"my wrestling, my struggle"
"deer, hart"
"God is salvation"
"work of God"
"one who helps or aids"
"dedicated, trained, initiated"
"my strength is Yahweh"
"one who catches fish"
"my help is God"
"ornament of God"
"belonging to God"
"son of Maurice"
"his peace"
"fruitfulness (of the land)"
"bright, radiant"
Similar sound: These names share phonetic patterns with Simcha — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Simcha.
Rhythm: Simcha is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.