Why do you want us to suggest something? You might take someone's suggestion and then end up hating it You have to do something that you actually want to do. If you don't currently know then try looking up the content of some courses or attending some masterclasses, they might help you decide if you do/do not want to do something
I assume you want to do something science-based, going by your A-Levels. I did Chemistry and Biology (I finished Year 13 this year) and I'm starting a Nursing course at uni next week. A friend did Chem and Bio as well and she's doing Pharmacy. If you want to include Geography in your degree/career, what about Geology and Oceanography? There are some suggestions to start you off ;-)
Why do you want us to suggest something? You might take someone's suggestion and then end up hating it You have to do something that you actually want to do. If you don't currently know then try looking up the content of some courses or attending some masterclasses, they might help you decide if you do/do not want to do something
Suggestions based on my A level subjects. Suggestions can help.
Think about what you are truly interested in. Search courses that are related to those interests. The only way you are going to be successful is by doing something you enjoy otherwise you will end up dropping out or getting a rubbish grade.