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!
This seems to be the best solution. It lets you select country and it even has all the local apps indexed.
Searching by language was locked behind a subscription which infuriated me but I guess subscribing to a service so that you can know what service you should subscribe to seems about right for 2024.
Letterboxd uses justwatch to tell you where a movie is available. If your a paying customer you can filter things by streaming service.
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.
JustWatch does a decent job of telling you if a specific movie is on any of the streaming services. For example, I just searched for the movie Tombstone and apparently it’s on Apple TV+, Hulu, and AMC’s service.
It’s not always accurate, so take everything it says with a grain of salt, but it’s better than nothing.
I’ll pitch in since no one’s mentioned Reelgood.com yet. Justwatch has been inconsistent for me in the past.
Just search “Where to stream ‘show’ in ‘country’” there are a lot of sites out there that catalog which services have which media and usually include a record of where you’ve been able to find them historically and when, if it’s been announced, a streaming service will lose that media.