A level choices help

I'm Currently in Year 11 making my A-level choices. I really want to do Geography, Sociology and Politics + EPQ since I genuinely enjoy and have a passion for the subjects.
However, if I were to study these I would have to go to a College because my sixth form does Not do Sociology.
As a result, I'm really not sure what do do. I really want to stay at my sixth form because I know the teachers, class sizes are smaller and it's much closer to home. I'm also not to keen on the College either since its really big and I would have to get the train there every day.
Is there any good alternative subjects instead of Sociology I could do?