Page Six may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. Ever wonder what your favorite celebrities buy when they’re browsing their favorite boutique or shopping online late at night? Welcome to Six Picks, where we ask stars to spill their style and beauty must-haves — so you can shop like you’re famous, too. No one’s having a summer quite like Ciara Miller. Since unwittingly winding up in the biggest reality TV news cycle of 2026, the “Summer House” star has starred in Shaboozey’s “Cowgirl” video, landed a hosting gig on “Love Island USA: Aftersun” and…