Reason is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Reaper. It's not free, so if you're looking for a free alternative, you could try Ardour or Caustic. If that doesn't suit you, our users have ranked more than 50 alternatives to Reason and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Reason are Bitwig Studio (Paid), Tracktion (Freemium), Rosegarden (Free, Open Source) and Qtractor (Free, Open Source).