This Hacktoberfest, I am maintaining Final Space API, a RESTful public API based on the show Final Space.
There are some great issues up for grabs, also you can create your own issues.
There are many beginner-friendly and non-coding issues, yes you heard it right, you don't need to code to contribute to the project. You can contribute in many different ways.
Here is one such issue : Contribute data to Character endpoint #18
Looking forward to your contributions. :)