@gamesbymanuel #justwatch (.com) is fairly good at tracking if some content is available to you locally, though it's not perfect.

Agreed, I have often had money in hand, wishing to watch some content, but nobody wants my money. So 'alternative sources' it is, then... Happens particularly with British content. You'd think #BritBox would be there to solve that, but it's rubbish. Barely anything on it.