Rodrick sits next to 5 phonetic neighbors — Roderick, Rodrick, and Broderick are the closest matches by sound. Most share Rodrick's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"famous ruler"
"one who struggles with God"
"bearer of Christ"
"water meadow"
"servant of the temple, noble acolyte"
"champion, cloud"
"remembered by Yahweh"
"hedgerow, boundary"
"holy one (of Dewi/David)"
"free man"
"slender, narrow"
"to shine, emit light"
"from Ilium, ancient Troy"
"rye clearing, wood clearer"
"deciding warrior"
"consecrated, revered"
"desiring peace, resolute peace"
"hay enclosure dweller"
"king"
"supplanter"
Similar sound: These names share phonetic patterns with Rodrick — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Germanic origins, giving them the same cultural heritage as Rodrick.
Rhythm: Rodrick is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.