Best way to organize shows and movies

Hi all, I just got a roku and was wanted to see from r/Roku what everyone does for finding and organizing channels/apps to stream shows and movies. I used to IMDB and make a watchlist, however I was wondering if there was a better way to keep track of shows and movies I'm watching/want to see along with where to see them. I've seen Nytimes.com/watching, justwatch, and a few others and wanted to see if anyone has figured out a good system for keeping track.

I could also use watchlists within each channel/app if that seems to be the best approach.