Tanner sits next to 4 phonetic neighbors — Connor, Banner, and Brenner are the closest matches by sound. Most share Tanner's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who tans leather hides"
"son of the fair one"
"modern American coinage, son of Case"
"steadfast, firm"
"settlement of the prince"
"ruler of the army"
"God is gracious (via John/Zane)"
"God prevails; God persists"
"ancient, enduring"
"lion"
"from Antwerp"
"prosperous spearman"
"noble, bright"
"man of laurels, from Laurentum"
"narrow channel's son"
"battle, warrior spirit"
"Brandon's woodland clearing"
"clay settlement, clay worker"
"raven"
"little saint"
"modern coinage combining Jay + Len"
Similar sound: These names share phonetic patterns with Tanner — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English (tannere) origins, giving them the same cultural heritage as Tanner.
Rhythm: Tanner is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.