Rowland sits next to 4 phonetic neighbors — Roland, Roland, and Rolland are the closest matches by sound. Most share Rowland's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"famous throughout the land"
"of Mars, warlike"
"knight of Jerusalem, Crusader hero (by association)"
"of Saturn, god of agriculture and time"
"dream, prophetic sight"
"variant of Aidan, meaning little fire"
"son of Anne"
"dark one"
"seal pup"
"large homestead"
"elevated, grand"
"earth, key"
"counseled by supernatural beings"
"smooth, clear water"
"supplanter, one who follows closely"
"sky father, king of the gods"
"liberated (spiritual parallel to Nirvana)"
"independent, unbranded — named after Samuel Maverick whose cattle w..."
"entertainer, companion in evening conversation"
"bear"
Similar sound: These names share phonetic patterns with Rowland — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German Hrodland origins, giving them the same cultural heritage as Rowland.
Rhythm: Rowland is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.