In Uma nova esperança, the Rebel Alliance has stolen the secret plans for the Death Star. They are able to study the plans to find the critical weakness allowing them to destroy the Death Star at the Battle of Yavin.
But even with the Death Star destroyed, they've still got the technical plans to perhaps the most advanced battle station ever constructed, and those could hold value to a lot of people.
Did the Rebel Alliance do anything with the plans? Study them for weapons development? Sell them on the black market to finance their rebellion? Consider making their own fleet of Death Stars? Or just destroy them to avoid anybody (aside from the Empire) from building another one?
I'm open to answers in either Disney Canon or Legends.