Sairus sits next to 5 phonetic neighbors — Cyrus, Sirus, and Darius are the closest matches by sound. Most share Sairus's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"like the sun, throne"
"dweller in the town"
"junior officer, student soldier"
"altar of heaven"
"battle warrior, powerful ruler"
"ruler of the people"
"beloved, gracious (variant of Erasmus)"
"Ford, river crossing"
"light, glowing"
"spear"
"hardwood"
"invented by Jonathan Swift from Esther Vanhomrigh (Van + Essa); no ..."
"ash tree settlement (variant of Ashton)"
"red-haired, ruddy"
"wealth and honor have come to my family"
"Bright; variant of Albin meaning white or bright"
"cymbal player, dulcimer musician"
Similar sound: These names share phonetic patterns with Sairus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Persian Kurush origins, giving them the same cultural heritage as Sairus.
Rhythm: Sairus is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.