Niko

• Same eraDarielLike Niko, it was given most in the 2020s.#326 · rising
• Same rhythmBradySame beat as Niko: two syllables, stress on the first, ending on a vowel sound, but it starts differently.#321 · steady
• ShorterZaneOne syllable to Niko's two, so you can tell them apart when you call both.#324 · falling
• LongerFranciscoThree syllables to Niko's two: a long name beside a short one keeps them distinct.#322 · steady
• RiskyNicoSounds just like Niko, spelled differently. Two kids, one name.#174 · rising

Suggestions come from names in this year's top 1,000. Rhythm and rhyme are judged from each name's pronunciation (Wiktionary's, or espeak's reading of the spelling), so a few calls may be off.