If it''s for an English text I'd recommend using a name without the letter 'ć' in it (or any other letter that doesn't exist in the English alphabet), since you can't transcribe it correctly and no one will know how to pronounce it if you do. There are plenty Croatian/Slavic last names without these letters.
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Current 'Z' favorites:
ZaneZekeZoranZsoltZuriel
ZaraZiaZillaZora Zoya