Calum

• Same eraBellamyLike Calum, it was given most in the 2020s.#797 · steady
• Same rhythmAileenSame beat as Calum: two syllables, stress on the first, ending on a consonant, but it starts differently.#799 · steady
• ShorterPearlOne syllable to Calum's two, so you can tell them apart when you call both.#776 · steady
• LongerDaliaThree syllables to Calum's two: a long name beside a short one keeps them distinct.#799 · 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.