Alexandr sits next to 4 phonetic neighbors — Alexandra, Alexander, and Aleksandra are the closest matches by sound. Most share Alexandr's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"defender of mankind"
"happiness, bliss"
"to be of worth, to be strong"
"bright, shining light"
"torch, beacon"
"pure, beloved"
"life, living"
"gracious, kind"
"strong, full-grown"
"gracious, dear, beloved"
"from the city of Larisa"
"priceless, inestimable"
"lily flower"
"life"
"grace, favor, sweetness"
"divine gift"
"gift of God"
"born on Christmas Day, birthday of the Lord"
Similar sound: These names share phonetic patterns with Alexandr — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Alexandr.
Rhythm: Alexandr is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.