Is there a good non-google alternative to Docs / Drive. I read the article hoping to find one, but didn't see any mention of one. Having a non-google version

Is there a good non-google alternative to Docs / Drive. I read the article hoping to find one, but didn't see any mention of one. Having a non-google version of a service which allows collaboration and modification of documents through a web browser, without additional software installed would be nice and I feel it must exist, but don't know where to look. Anyone got a recommendation.