Jasher sits next to 4 phonetic neighbors — Jasper, Asher, and Joshua are the closest matches by sound. Most share Jasher's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"upright, righteous, just"
"my music, my song"
"slave of the Lord"
"healed by God"
"blessed, fortunate"
"pure, innocent, clear"
"who is like God? (rhetorical, meaning no one)"
"silver-wheeled (sky goddess)"
"empty, hollow"
"my help, my helper"
"God has helped"
"divine promise"
"God has appointed"
"God is Lord (variant of Elijah)"
"help of God"
"rose"
"ruling"
"peace, repose"
Similar sound: These names share phonetic patterns with Jasher — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew yashar origins, giving them the same cultural heritage as Jasher.
Rhythm: Jasher is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.