Declan

• Same eraRyleeLike Declan, it was given most in the 2010s.#137 · falling
• Same rhythmSummerSame beat as Declan: two syllables, stress on the first, ending on a consonant, but it starts differently.#151 · steady
• ShorterSloaneOne syllable to Declan's two, so you can tell them apart when you call both.#141 · rising
• LongerAlanaThree syllables to Declan's two: a long name beside a short one keeps them distinct.#140 · 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.