Best way to start is watching tv news. Hosts have very clear pronuntiation, it's their job after all.
I first research what tv channels are more popular in the country, then search YouTube with that info. YouTube doesn't seem to offer a lot of search options, but it's possible to do the search from Google or DuckDuckGo and later select "videos" tab.
DuckDuckGo has a dropdown menu that allows search localization, so the first results are the most relevant to the selected country. Once you find a handful of interesting channels, you're set up.
This is a reflection on me of course - you should have your own opinions.
Anyway, if there's a channel with lots of contents, it's still possible to select only interesting topics. Maybe it's easier for me, because the language I'm most interested in is English :) Usually I don't even need YouTube, just setting Netflix language to English.
For other languages, I'm mostly interested in listening to specific words pronuntiation, usually names.
I've also watched several videos and concluded after a while that it wasn't my TL but a related language.