Zarek sits next to 4 phonetic neighbors — Darek, Marek, and Derek are the closest matches by sound. Most share Zarek's Polish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God has protected, God will protect"
"surname-derived given name"
"from Rome, Roman"
"the greatest, most excellent"
"cutting edge of a sword or tool"
"young warrior, soldier"
"manly, brave, strong (via Andre/Andreas)"
"gift of God"
"son of Denis/Dye"
"wise counsel and army, counseling warrior"
"he enlightens, God enlightens"
"oak tree, tree of strength"
"God is gracious"
"worthy, powerful"
"fortified stronghold"
"poet"
"peace, world"
"West African form of Abu Bakr"
"brave as a lion"
"strong, healthy"
"to be, to exist, present"
Similar sound: These names share phonetic patterns with Zarek — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Polish/Slavic origins, giving them the same cultural heritage as Zarek.
Rhythm: Zarek is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.