Recommendation for a 'Travel Agent' that buys and resells points for trips?

Hi

Does anyone know the name of a US travel agent that apparently specialises in aggregating airline points and then onselling flights with these points?  I’ve tried numerous searches online without any luck.  Apparently it’s a way of getting cheap business class flights.

If anyone does know what I’m talking about have you had experience with them and are they any good?

Thanks

There are a few. Alpha Flight Guru come to mind, and Luxury for Less. No experience with either, and I wouldn’t use personally as there are limited guarantees around the flights they provide for you. I have heard a few horror stories! But everyone’s appetite for risk is different.