I also have this one:
https://orangeamps.com/products/accessories/amplifier-management/valve-tester/
But it is more for guitar amp tubes than the numerous other kinds of hifi tubes.
There is some debate if it is really that accurate but if you find one for a couple hundred bucks used grab it. I don't think they make it anymore so unlikely to find a new one.
Then there are these guys in Canada - seem like some neat gear but maybe not as rugged as the Maximatcher.
http://www.thebestamp.com/Testing_Equipment/Testing_Equipment.php
Good luck.