Ritchie sits next to 3 phonetic neighbors — Richie, Ricky, and Richey are the closest matches by sound. Most share Ritchie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"brave ruler, powerful leader"
"spear, from the oak grove"
"heather, heath plant"
"grace, favor, thankfulness"
"from the lake"
"of the river (if -von is from Welsh afon)"
"excellent, authentic (slang)"
"dweller at the white cultivated land"
"God persists, God will prevail"
"manly beauty, sun god"
"hare's valley, valley of hares"
"ruler of the home"
"gift of God"
"spirited, broad"
"bright will, shining desire"
"fire of God"
"new house, new home"
"supplanter, he who follows at the heel (as Jacob)"
"modern invented name with phonetic appeal"
"God is my judge"
"heavenly, soaring"
Similar sound: These names share phonetic patterns with Ritchie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German ric + hard origins, giving them the same cultural heritage as Ritchie.
Rhythm: Ritchie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.