The main one in Hobart is of course the Lark tour. Sullivan's Cove is interesting, but it's basically just a bit warehouse full of barrels and a giant copper pot still.
There are lots of small scale distilleries on Tasmania. Some you can visit if you ring up in advance as they are not open all the time due to being family run or on such a small scale. I find visiting the little guys more interesting than the bigger commercial ventures.
7K is supposed to be pretty cool, it's run out of a couple of shipping containers!
http://www.7kdistillery.com.auDead Man's Point is on my list. They use a plated column still & carter head (from an online shop that I
Shoul
Dn't mention).
https://hunningtondistillery.com.au/Nonesuch are about to launch their first whisky on Australia Day.
http://www.nonesuchdistillery.com.auSpring Bay on the east coast is supposed to be pretty cool.
http://www.springbaydistillery.com.au