Gardner sits next to 3 phonetic neighbors — Garner, Gordon, and Carter are the closest matches by sound. Most share Gardner's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"keeper of the garden, gardener"
"to hang, weigh, measure"
"famous in the land, renowned territory"
"one who resembles God"
"phonetic variant of Ryker"
"from the rocky peaks"
"battle warrior, army in battle"
"supplanter (James element)"
"love"
"descendant of Creadan"
"ruler, one who rules"
"God is my strength"
"craftsman, smith"
"noble, distinguished"
"strawberry grower"
"land surrounded by water"
"son of Matthew"
"exalted one (via Aaron)"
"home strength, powerful ruler"
"the great river (via Zaire)"
"enduring and given by God"
Similar sound: These names share phonetic patterns with Gardner — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French/English origins, giving them the same cultural heritage as Gardner.
Rhythm: Gardner is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.