My favorite subject to read up on daily is technology in general and programming & decentralization specifically. How many articles I read depends on how lazy I am. On a good day I read none at all, on a bad day I read for hours on end instead of doing something more productive ;)
I don't really have any favorite authors when it comes to articles. If it sounds interesting I read it, doesn't matter to me who wrote it. A famous person everyone listens to can have a bad idea, a person nobody knows can have a great one, so when it comes to articles I read them from as many places as possible, preferably directly from the source, although sometimes you also want to read different people's viewpoints on a story so reading the source is just the first step if it's interesting enough to warrant a bit more research :)