Rya sits next to 5 phonetic neighbors — Ria, Rya, and Rhea are the closest matches by sound. Most share Rya's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little stream, flowing water"
"immortal, eternal"
"heaven, sky"
"endurance, patient suffering"
"pure, victorious meadow"
"pearl"
"goddess, divine woman"
"sun (via Persian Kira)"
"leader, ruler"
"gift of the goddess"
"elf ruler with feminine suffix"
"brave, heroic"
"timid (from Bilhah)"
"bright fame"
"angel, messenger (of God)"
"angelic, messenger of God"
"whole, universal (Emma) + lake/beautiful (lyn)"
"from Beverley (Yorkshire place name)"
"descendant of Séaghdha"
"eternal ruler, ever mighty"
"garden of holly"
Similar sound: These names share phonetic patterns with Rya — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Spanish/Portuguese origins, giving them the same cultural heritage as Rya.
Rhythm: Rya is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.