any good sixth form colleges in london?

hi im looking for sixth form colleges bc i rlly dont wanna stay in my secondary schools sixth form as i got bullied, due to this i dont think i did well in my gcses but due to leaked markschemes i think ive passed, does anyone know any sixth form colleges that doesnt have a high acceptance rate in london? ive applied to laswap and although i rlly like the subjects i dont think ill get accepted as the entry requirements are a bit high 😓😓😓
anyways does anyone know sixth form colleges in london!!!!!