Todd sits next to 3 phonetic neighbors — Tod, Tad, and Rod are the closest matches by sound. Most share Todd's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fox"
"elf ruler"
"dear, gracious, beloved"
"Yahweh saves"
"hero (cultural/gaming)"
"fifth-born child"
"worth, worthiness"
"rush plant (marsh grass)"
"modern invented name, possibly dark one"
"black, dark-haired"
"king, ruler"
"handsome, radiant one"
"little king"
"from Radley (red clearing)"
"modern invented name"
"slender, narrow"
"world ruler"
"from Germany"
"occupational surname for cellar manager"
"from India"
"selected, chosen one"
Similar sound: These names share phonetic patterns with Todd — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Middle English origins, giving them the same cultural heritage as Todd.
Rhythm: Todd is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.