Sacha sits next to 3 phonetic neighbors — Sasha, Sascha, and Zach are the closest matches by sound. Most share Sacha's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"defender of mankind"
"gift of God, gift of Yahweh"
"peaceful ruler"
"eagle power"
"life (variant of Zoltan, life/ruler)"
"gift of God"
"little warrior or little church man"
"archer; one who works with yew wood"
"gift of God, godlike"
"one who works the earth"
"wheel maker, cartwright"
"heel, ankle"
"venerable, revered"
"anointed one who carries"
"noble strength"
"bright, radiant"
"who is like God?"
Similar sound: These names share phonetic patterns with Sacha — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via Russian origins, giving them the same cultural heritage as Sacha.
Rhythm: Sacha is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.