Adam sits next to 4 phonetic neighbors — Ada, Adame, and Adama are the closest matches by sound. Most share Adam's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"earth, ground"
"flower; blooming"
"wanderer, traveler"
"rosy-cheeked, bright"
"queen (from Regina)"
"mountain peak"
"watcher, one who sees clearly"
"star, stars"
"gift of Yahweh"
"shining glory"
"possibly related to Ursula (little bear)"
"star of the sea, beloved"
"dear one"
"From Wales; a foreigner or stranger"
"flower"
"exalted one, high goddess"
"modern invented name, possibly echoing Zoe (life) with X-prefix drama"
Similar sound: These names share phonetic patterns with Adam — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Adam.
Rhythm: Adam is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.