This is a really good article that puts very clearly some of the WTF moments I've had since having to take over a React project. However, if the title is "If not React, then what?", then the author should've answered that question.

I did find some recommendations for other reactive front-ends buried in the article, but I didn't see anything that set them apart aside from the fact that they are smaller projects. Now, if I want to follow the article's advice and get off of React I have a ton of research to do, research that the article's title didn't hint that I'd have to get going on.