If you have some time you might check out https://spacetraders.io which is a space trading mmo with REST endpoints for buying and controlling ships, navigating and placing market orders. Basically a buy low / sell high economy game but you can automate everything since it's all REST endpoints.
It might be fun if you need to learn a new language and want something fun to practice against. We do weekly leaderboards to see who made the most credits. Lots of activity on our Discord about automation and making clients in various languages / frameworks.
Check it out and let me know if you have any feedback!