Jonas sits next to 5 phonetic neighbors — Jonah, Jones, and Johannes are the closest matches by sound. Most share Jonas's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"dove"
"fifth"
"glory in battle"
"rye-field dweller"
"from Wells, Somerset"
"ruler of the people"
"little red one (from red hair)"
"to hold fast, to restrain"
"of the Julian family"
"born on Sunday"
"God is with us"
"bright fame, shining glory"
"asked of God"
"descendant of Jove (Jupiter)"
"consecrated, increased"
"one who serves"
"from the city of Troy"
"right-handed, skillful"
"to heal (from iasthai)"
"name of God"
Similar sound: These names share phonetic patterns with Jonas — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew Yonah (יוֹנָה) origins, giving them the same cultural heritage as Jonas.
Rhythm: Jonas is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.