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. Sai de Silva is having a big year in the Big Apple. With Season 16 of “Real Housewives of New York” premiering this week, the style-savvy content creator is finally back on screens. And things are looking a little different for her this time — in…