If it's not on Netflix or any streaming provider, I have no choice but to pirate it. Plain and simple. Most media content is still outside the main providers.
Pro-tip: You can now digitally rent basically every movie from Youtube or Amazon. Services like https://www.justwatch.com/ make it easy to not break the law. I used to use Popcorn time all the time, but honestly it kinda feels good to not steal /shrug
BTW, I also tried to buy Harlots in Canada, in physical format. It wasn't available in Blu-Ray