Yoshigei sits next to 3 phonetic neighbors — Yoshiko, Yoshie, and Yoshi are the closest matches by sound. Most share Yoshigei's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"good art, excellent performance"
"king of the underworld (Japanese mythology)"
"honor, light"
"inventive/blended origin with Japanese sounds"
"singer, singing one (by association)"
"twin"
"root child, sound child"
"sea, ocean"
"young thunder, child of thunder"
"reason and clothing"
Similar sound: These names share phonetic patterns with Yoshigei — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese origins, giving them the same cultural heritage as Yoshigei.
Rhythm: Yoshigei is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.