Monty sits next to 4 phonetic neighbors — Monte, Monts, and Marty are the closest matches by sound. Most share Monty's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pointed mountain, hill"
"peaceful ruler"
"little red-haired one"
"majestic, venerable"
"follower of Dionysos, of Zeus"
"of the angel, messenger of God"
"blue-purple dye, the color indigo"
"guiding spirit"
"son of Bray (from Celtic bray: brave)"
"from, of (noble German particle)"
"God is just, justice of God"
"battle, fighter"
"a natural watercourse"
"son of Jet, swift one"
"my brother is high, noble"
"God's salvation"
"white meadow"
"settlement by the pool"
"a day's travel, expedition"
"tile-maker, tiler"
Similar sound: These names share phonetic patterns with Monty — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French/Gaulish origins, giving them the same cultural heritage as Monty.
Rhythm: Monty is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.