Jo

• Same eraVanLike Jo, it was given most in the 1950s.#970 · steady
• Same rhythmKrueSame beat as Jo: one syllable, ending on a vowel sound, but it starts differently.#935 · rising
• LongerKabirTwo syllables to Jo's one: a long name beside a short one keeps them distinct.#999 · steady
• RiskyBeauRhymes with Jo. Cute on a birth announcement, confusing across a playground.#60 · 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.