Mahdi sits next to 4 phonetic neighbors — Mehdi, Madhi, and Madi are the closest matches by sound. Most share Mahdi's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one guided by God"
"prophet-king of wisdom"
"strong and excellent"
"from the moon"
"hunter"
"exalted, high, noble"
"morning star, night visitor"
"jewel, gem"
"God will hear"
"good, beautiful, handsome"
"master, lord, chief"
"he who remains forever"
"baby bustard (young bird)"
"settler, one who stays in a place"
"the prophet Jonah"
"servant of the Most Merciful"
"the almighty (divine attribute)"
"God will increase, God adds"
Similar sound: These names share phonetic patterns with Mahdi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Mahdi.
Rhythm: Mahdi is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.