Not quite what you're looking for, but perhaps a start: you could use Festival Finder, then find Glastonbury and it'll tell you your top matching artists. It can also spit you out a playlist of the artists playing the fest that you've listened to on Spotify. Source: about 1 year ago

Https://festivalfinder.co/ - Compare the bands and artists you follow with over 1000 festivals all over the world to find the one that matches you perfectly. Source: about 2 years ago

Https://awardwallet.com tracking points and expiration dates. Source: over 1 year ago

Awardwallet.com has a credit card spend analysis tool which will show you based on your transactions which cards would have earned you more points. This is how I learned I have missed out on thousands of potential point/mile earnings because I didn't have the correct card mix. Source: over 1 year ago

Award Wallet does that too. I agree - great feature. https://awardwallet.com/. Source: about 2 years ago

Came across Award Wallet and think it's a fantastic idea. They are self-proclaimed as extremely popular, with hundreds of thousands of users. Source: over 2 years ago

You can try awardhacker.com to search for FF flights or awardwallet.com to track and optimize points accumulation. There are services that find the best usage of FF points and charge some money for it, I think I saw a list on slickdeals at some point. Source: almost 3 years ago