Robin

• Same eraChrisLike Robin, it was given most in the 1960s.#646 · steady
• Same rhythmAhmedSame beat as Robin: two syllables, stress on the first, ending on a consonant, but it starts differently.#703 · steady
• ShorterDukeOne syllable to Robin's two, so you can tell them apart when you call both.#695 · steady
• LongerOziasThree syllables to Robin's two: a long name beside a short one keeps them distinct.#707 · rising
• RiskyRoninOne letter away from Robin. You'll call the wrong one for years.#504 · falling

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.