I use Feeder for Android and view everything from there. Notifies me of new posts. https://f-droid.org/en/packages/com.nononsenseapps.feeder/

For like reddit I do https://teddit.net/r/[subreddit]?api&type=rss

For twitter I do https://nitter.net/[username]/rss

Can display things in groups or all together. Lists them chronologically. No need for an account. No need to visit the site.