有 is built from the 𠂉 (person (top of 毎·気)) and 月 components.
It belongs to a phonetic family with 右, 友, and 雄 — they share the 𠂉 component and the reading ユウ.
A common word using 有 is 有名 (ゆうめい), meaning “famous”.
Kanji that look similar include 在, 存, 佐, and 右.