Magnus sits next to 3 phonetic neighbors — Marcus, Maximus, and Angus are the closest matches by sound. Most share Magnus's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"great"
"high mountain, exalted"
"noble, handsome"
"fair-haired one"
"noble, bright"
"dove (short for Callum from Scottish Gaelic)"
"from the River Clyde"
"divine staff, royal pillar"
"supplanter's son"
"protector of mankind"
"son of Walter"
"Viking homeland (Scandinavia)"
"defender of men"
"council friend"
"victory of the people"
"noble friend, elf friend"
"bold warrior, battle army"
"victorious people, conquering nation"
"arrow maker"
"land of lakes"
Similar sound: These names share phonetic patterns with Magnus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Magnus.
Rhythm: Magnus is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.