Sidra sits next to 4 phonetic neighbors — Sierra, Sandra, and Sadia are the closest matches by sound. Most share Sidra's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"like a star, starlike"
"jasmine flower"
"jasmine flower"
"forbearing, mild"
"accessible, easy"
"ruby-red, gem-colored"
"peaceful song"
"brilliance, radiance, splendor"
"garden, enclosed beautiful space"
"one who obtains what she seeks"
"angel, heavenly messenger"
"tender, delicate"
"modesty, shyness, virtue"
"young lioness, lion cub"
"first letter, alif"
"beautiful, ornament"
"light of the moon"
"read, recite"
"a sacred hill in Mecca"
Similar sound: These names share phonetic patterns with Sidra — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Sidra.
Rhythm: Sidra is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.