I know piracy will be 90% of the answer here and I agree but I am watching with people that insist on legal viewing.
I search here to find what is apparently available, then do decision making from there
Edit:
Plex has a similar functionality to suggest streaming services, so you can in theory build a list to watch and be given leads
Edit 2:
Letterboxd does as well!
Letterboxd uses justwatch to tell you where a movie is available. If your a paying customer you can filter things by streaming service.
I’ll pitch in since no one’s mentioned Reelgood.com yet. Justwatch has been inconsistent for me in the past.
Justwatch’s website is great, but their app is garbage.
Very light weight solution but doesn’t seem to allow for selecting country so it’s probably america-centric.
Click the three lines and click settings. Then you can choose a default country. First time using this tool so can’t advocate for it but you can absolutely change countries very easily.
I stand corrected. If it indexed more services it would have been the best option.