Here are some jobs:
Sociology:
-Advice Worker
-Community Development Worker
-Teacher/Lecturer
-Housing Manager/Officer
-Marketing Executive
-Police Officer
-Youth Worker
-Social Researcher
Sports:
-Exercise Physiologist
-Fitness Centre Manager
-Personal Trainer
-Teacher
-Sports Administrator
-Sports Coach
-Sports Development Officer
-Sports Therapist
What I will say is, optional GCSEs aren’t the most important thing. To be able to go to college, alot courses just require English or maths. There are exceptions to this however. Colleges usually have website pages so I’d suggest looking at them and looking at the courses, as you will be able to find out which courses NEED a specific option. I know sport related courses usually do need a sport gcse, and science related courses of course need a good grade in either the specific science related to it, or just a certain grade in mixed science.