Belen sits next to 3 phonetic neighbors — Helen, Elena, and Eileen are the closest matches by sound. Most share Belen's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"house of bread"
"brave, courageous (lion-like)"
"festival of roses"
"goddess of flowers and spring"
"gentle, branch, to draw water"
"skylark"
"wonderful, marvelous"
"woman of Judea"
"crown of laurels"
"dark, rich (possibly referring to the dark Adriatic waters)"
"pure"
"star, heavenly body"
"born again"
"brightness, radiance"
"famous warrior, renowned fighter"
"soul"
"orchid flower (Cattleya species)"
"desire, wish"
"sun"
"queen"
"saw-toothed ridge"
Similar sound: These names share phonetic patterns with Belen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew Beit Lechem origins, giving them the same cultural heritage as Belen.
Rhythm: Belen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.