Jobs that I can study while doing?

Hello everyone,
For reasons I won't get into here, I'm looking for a minimum wage job where I would still have enough downtime to self-study an online course I'm doing. I've been thinking something like this might be possible in a receptionist style scenario. Has anyone done this before? What sorts of jobs are good for this? I'm gessing it's probably jobs where they are looking for a person to pay just to have someone on-site and on-call...