Rhya sits next to 5 phonetic neighbors — Rhia, Ria, and Riah are the closest matches by sound. Most share Rhya's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"flowing, from the river"
"industrious ruler (via Emery)"
"the tulip flower"
"of the Romilly family, Norman nobility"
"eagle"
"of the lyre, musical one"
"exalted one"
"son of Stephen"
"to give thanks, to be grateful"
"gardenia, flower"
"jasmine flower"
"invented name combining Rae + la ending"
"joyful song, joy"
"creative modern variant of Celia/Shelia"
"blind (from Latin caecus)"
"of the eternal city"
"fair, pure"
"person, precious thing"
"gift from the lake"
"combination of Rylee (courageous) and Ella (all, whole)"
"one who inherits (Latin root)"
Similar sound: These names share phonetic patterns with Rhya — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Rhya.
Rhythm: Rhya is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.