Two on Kaggle right now:<p><a href="https://www.kaggle.com/c/data-science-for-good-city-of-los-angeles" rel="nofollow">https://www.kaggle.com/c/data-science-for-good-city-of-los-a...</a><p><a href="https://www.kaggle.com/c/jigsaw-unintended-bias-in-toxicity-classification" rel="nofollow">https://www.kaggle.com/c/jigsaw-unintended-bias-in-toxicity-...</a>
I've also been looking around for something interesting to work on which will actually be helpful to other people. And it doesn't doesn't necessarily need to be ML related.