Colby

• Same eraKeeganLike Colby, it was given most in the 2000s.#621 · falling
• Same rhythmYahyaSame beat as Colby: two syllables, stress on the first, ending on a vowel sound, but it starts differently.#615 · rising
• ShorterKoenOne syllable to Colby's two, so you can tell them apart when you call both.#622 · rising
• LongerJakariThree syllables to Colby's two: a long name beside a short one keeps them distinct.#612 · 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.