Leonard

• Same eraSamLike Leonard, it was given most in the 1920s.#647 · steady
• Same rhythmRonaldSame beat as Leonard: two syllables, stress on the first, ending on a consonant, but it starts differently.#637 · steady
• ShorterShaneOne syllable to Leonard's two, so you can tell them apart when you call both.#635 · falling
• LongerIzaiahThree syllables to Leonard's two: a long name beside a short one keeps them distinct.#635 · falling
• RiskyLeonardoOne letter away from Leonard. You'll call the wrong one for years.#91 · steady

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.