Helena

• Same eraBriellaLike Helena, it was given most in the 2010s.#362 · steady
• Same rhythmAriyahSame beat as Helena: three syllables, stress on the first, ending on a vowel sound, but it starts differently.#366 · steady
• ShorterKaylaTwo syllables to Helena's three, so you can tell them apart when you call both.#364 · falling
• LongerAdrianaFour syllables to Helena's three: a long name beside a short one keeps them distinct.#366 · steady
• RiskyElenaOne letter away from Helena. You'll call the wrong one for years.#42 · 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.