Rodrigo sits next to 4 phonetic neighbors — Rodrigue, Roderick, and Rodrigues are the closest matches by sound. Most share Rodrigo's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"famous ruler"
"noble, strong"
"asked for, prayed for"
"victory of the people"
"the greatest, superlative"
"mind, spirit, heart"
"wealthy, rich"
"God among us, divine presence"
"dark-skinned, Moorish"
"gift of God's visitation"
"gift of God"
"God will strengthen"
"pilgrim to Rome; from Rome"
"Christmas, born on Christmas"
"saved by God"
"gift of the Lord"
"free man"
"of the Fabian family"
"greatest"
"bright fame, shining glory"
"rock, stone"
Similar sound: These names share phonetic patterns with Rodrigo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Visigothic/Germanic origins, giving them the same cultural heritage as Rodrigo.
Rhythm: Rodrigo is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.