I started the tube journey with a highly rated Consonance integrated from China. It had been favorably reviewed, used 4 of my target 300B tubes, so gave a less scary power output number for the speakers I had at the time, etc... It was a safer move for many reasons. I bought and rolled several sets of power tubes... It is a good unit and really gave me a feel for the tubes. It is a Consonance Ref5.5 and a friend has it now beginning his tube journey.
Maybe just get something cheap to get your feet wet. I’m much further down the 300B path now, but that first decent integrated gave me the sandbox to play in.