You can try popular streaming platforms like Netflix or Amazon Prime Video. Sometimes, it might also be available on cable TV channels that focus on crime dramas.
There are several websites where you can find Fairy Tail fanfiction to read, but watching it in a video form might be a bit more difficult. Some popular fanfiction platforms like Archive of Our Own (AO3) and FanFiction.net are great places to start. However, these are mainly for reading written fanfiction, not watching. If you're looking for something more visual like animated fanfiction, YouTube might have some fan - made animations, but they might not be official or in large quantities.
Some cable TV channels like A&E or the Biography Channel might air it. You could also look on subscription-based services such as Amazon Prime Video. It depends on your region and available subscriptions.
You could try looking on cable TV channels like FX. Also, some streaming services like Disney+ or HBO Max might have it. Just search and see which one has it based on your subscriptions.
One option is Hulu. They often have a good selection of shows like 'American Horror Story: Delicate'. Sometimes, you might need a subscription, but it's worth it for the content.