Selim sits next to 4 phonetic neighbors — Salim, Slim, and Selam are the closest matches by sound. Most share Selim's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"unharmed, complete"
"entertaining companion, engaging conversationalist"
"noble, of excellent character"
"enlightened, bearer of light"
"auspicious, blessed, fortunate"
"noble, refined"
"so be it (amen)"
"One who is difficult to tame, untameable"
"one who rejoices"
"prophet swallowed by a whale (Quranic narrative)"
"hidden one, the invisible power"
"achiever; one who attains"
"he who adds; the increaser"
"peace, safety, security"
"strong, firm"
"God is salvation"
"abundance, generous provider"
"enchanting, magical"
"son of good fortune, favored son"
Similar sound: These names share phonetic patterns with Selim — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Selim.
Rhythm: Selim is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.