Ladies, whats a good birth control? That I won't gain weight? My dr said to get birth control to…

Ladies, whats a good birth control? That I won't gain weight? My dr said to get birth control to stabilize my periods, well I don't have insurance anymore to go back to the dr. But when I do go back what's a good brand? Also is it better to get in patch or pill? I never used birth control! But I been stuffing with bad period, having periods every other week. And am scared cuz idk what's going on with me! It sucks not having insurance.