Tanya sits next to 4 phonetic neighbors — Tania, Tonya, and Tara are the closest matches by sound. Most share Tanya's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fairy queen"
"little rose"
"fair lady, white and smooth"
"reborn, born again"
"threefold, the Holy Trinity"
"friend, beloved companion"
"radiant, sun"
"ewe, female sheep"
"rye clearing plus lake"
"from the Afton River"
"drop of the sea"
"Yahweh is gracious"
"bright light"
"help, strength"
"beloved, dearest friend"
"descendant of Lorcán"
"golden one, gilded"
"lovable"
"sailor, one who sails"
"place by the meadow"
"life, to breathe, to live"
Similar sound: These names share phonetic patterns with Tanya — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Slavic folk etymology origins, giving them the same cultural heritage as Tanya.
Rhythm: Tanya is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.