Ruby

• Same eraArthurLike Ruby, it was given most in the 1920s.#87 · rising
• Same rhythmAndrewSame beat as Ruby: two syllables, stress on the first, ending on a vowel sound, but it starts differently.#73 · falling
• ShorterBrooksOne syllable to Ruby's two, so you can tell them apart when you call both.#64 · rising
• LongerJoshuaThree syllables to Ruby's two: a long name beside a short one keeps them distinct.#66 · steady
• RiskyRudyOne letter away from Ruby. You'll call the wrong one for years.#739 · 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.