Rigo sits next to 3 phonetic neighbors — Rico, Diego, and Hugo are the closest matches by sound. Most share Rigo's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"ruler, power"
"attendant at religious rites"
"young goat (shield bearer)"
"black"
"indigenous Canarian name"
"warrior, martial"
"wealthy friend"
"lapis lazuli (the stone)"
"gift of God"
"descendant of Raghallach"
"bold journey, brave traveler"
"cinnamon tree"
"youthful, downy-bearded"
"vigorous ruler"
"he who has the people distressed"
"revered, venerable"
"dark one"
"strong, healthy"
"greatest of the Aemilii"
"strong as an eagle"
Similar sound: These names share phonetic patterns with Rigo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Rigo.
Rhythm: Rigo is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.