Without actually reading it, I somehow think RT will select convenient non-russian news as well. Like, underlining Le Pen or AfD declarations or the post-Brexit downsides... there's room for disinformation also when doing a simple selection.

Of course they would. But thats not my point.

My point is if you want to hear about BS happening in your own country you'd probably read about it from foreign papers/sources first.

Those have no incentives not to bash your homeland, as oppose to local sources that have to balance not pissing off government (for access to interviews, news, sources) and ad revenue by reporting on the sensitive topics.

I'd put BBC or Al Jazeera as a example rather than RT or Xinhua.

I read a few sources of biased news, deliberately to see the different viewpoints, omissions and outright lies. RT is pretty bad for making unsubstantiated claims or strong insinuations that are obviously refuted by facts presented by other news sources. They spread disinformation about the US, too, not just Russia.

This is what I do as well; I would add the caveat that foreign news sites written in english are absolutely pushing propaganda on you regardless of whether it's about internal politics or foreign politics. Russia Today is even up front about this; the point is the propaganda itself is useful in order to detect what the actual arguments are. You do not get this by reading only one opinion as the only other viewpoints you will receive will be strawmans.