Jon

• Same eraByronLike Jon, it was given most in the 1960s.#980 · steady
• Same rhythmMeirSame beat as Jon: one syllable, ending on a consonant, but it starts differently.#948 · steady
• LongerJethroTwo syllables to Jon's one: a long name beside a short one keeps them distinct.#952 · rising
• RiskyJohnSounds just like Jon, spelled differently. Two kids, one name.#23 · 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.