Grover sits next to 3 phonetic neighbors — Dover, Rover, and Glover are the closest matches by sound. Most share Grover's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"grove dweller, one who lives near a grove"
"counsel warrior"
"hawthorn tree, thorny hedge enclosure"
"ruler of the home, home ruler"
"that which is yet to come"
"lake colony, settlement by the pool"
"born of laughter, joy"
"God is salvation, God saves"
"appointed by God"
"invented name, possibly from Tariq (morning star)"
"God is gracious"
"divine mother goddess (Irish)"
"son of the grey-haired one"
"bright star in Aquila"
"covered with dust"
"right-handed, skillful"
"consecrated, worthy of reverence"
"God is gracious (John) + ruler of the home (Henry)"
"sea warrior, sea spear"
"compassion, forgiveness, clemency"
"third son with divine grace"
Similar sound: These names share phonetic patterns with Grover — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Grover.
Rhythm: Grover is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.