Best way to find open source projects for a returning developer to contribute meaningfully

Hello everyone. First let me tell you why I am requesting this, I have worked before as a Professional Full stack developer for 5 years at a development company. However, for the last 3 years, I have been out of programming work entirely because of a combination of physical and mental illness. And after I spent the past year in therapy and recovery I am finally ready to get back to work, However I am out of the practice of taking tasks, accomplishing them and testing them, I have my knowledge and experience still, and I have kept up with the development trends and new best practices, but I need practice to get going. So, what is the best ways of finding open source projects to contribute to meaningfully either with bug fixing or accomplishing tasks so I can rebuild my skills and portfolio.