Idaira sits next to 2 phonetic neighbors — Isaura and Idara are the closest matches by sound. Most share Idaira's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
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"land of abundance"
"one's meadow, solitary clearing"
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"lover, sweetheart"
"pearl (via Scottish Maisie/Margaret)"
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"sun strength, powerful sun"
"bracelet, ring"
"sun; dream (Sanskrit)"
"Entertainment and Sports Programming Network"
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Similar sound: These names share phonetic patterns with Idaira — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Guanche origins, giving them the same cultural heritage as Idaira.
Rhythm: Idaira is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.