Helius sits next to 4 phonetic neighbors — Helios, Helio, and Elias are the closest matches by sound. Most share Helius's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sun, radiant light"
"exalted, noble, high"
"honey, sweet"
"thatcher, roofer"
"free man"
"character, virtuous disposition"
"one of the Vandal people"
"all, completely"
"a plaything, a source of joy"
"river crossing dweller"
"from Florence, blooming"
"western land, western meadow"
"son of Jack, God is gracious"
Similar sound: These names share phonetic patterns with Helius — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Ancient Greek origins, giving them the same cultural heritage as Helius.
Rhythm: Helius is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.