All A-Levels can be difficult, but it depends on your strengths. I took AQA Psychology and Sociology, which I really enjoy and don't find too difficult. However, both are very content-heavy and involve lots of writing, especially sociology which is mostly essay-based. If you don't mind lots of writing and have a genuine interest in these subjects, then they shouldn't be too hard, but A-Levels in general require a lot of time and hard work, so if you are looking for something less academically intense, then I would consider vocation courses like BTECs and T-Levels (which are great if you want a single subject). It would be good to speak to your school's career advisor (if you have one), teachers of subjects that you enjoy and are good at, and to different subjects lecturers at a college/sixth form open evening if you can. All of these people should be able to give you specific, personal advice to help you make the best choice. Good luck!