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"
"descendant of the courageous one"
"at the meadow, by the clearing"
"to measure time (etymological root)"
"Ukrainian form of Salome"
"noble kind"
"white phantom, fair spirit"
"sacred maile vine, fragrant offering"
"most holy"
"western meadow + lake"
"from the little field"
"variant of Kira, possibly meaning sun or throne"
"weary, delicate"
"noble elf ruler"
"of noble kind"
"lily flower"
"the bringer of new things"
"clear, unsullied"
"hazel island"
"beloved of Yahweh"
"broad island (alternative etymology)"
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.