Wallabagger

Similar to Pocket, but you can (optionally) host your own server. Less polished, but it does the job, and you know your bookmarking choices aren't being fed into a recommendation algorithm. This extension makes it easy to save the current page to read later, with optional tagging in the save dialog. And it can save the content from the page you're viewing now, which is helpful for sites with login walls. Setup is a bit clunky, but at least you only need to do it once.