Verzija youtube-a bez reklama, mozes gledati video u small picture pop up-u ili audio only ako oces i radi kad zakljucas mobitel. Jedino nisam siguran je li moguce skidati videe, nisam pokusavao. Nazalost radi samo na androidu, pa ako imas iPhone nema. link
What about movies and series with croatian subtitles? It's been a while since I last downloaded them but you can probably find them at opensubtitles and podnapisi
If you want to drill the cases, try my app I'm working on. It's still a work in progress but it does the job for practicing cases/declension. Navika - iOS and Navika Android
Thank you so much for this detailed answer! That paper in particular is very intriguing.
As far as the examples go for words like nablizu, I typically look on glosbe and other corpora for things like that. Glosbe lists three examples.
That said, it does seem to be an obscure word, which is fine. I'm sure a lot of these are rare. I'm just trying to be thorough, which is why I appreciate you especially bringing ublizu to my attention. :)