I think Max Blumenthal (founder of The Grayzone) might be a libertarian
Many libertarians have the same opinions as us on non-economic foreign policies of the West (seeing through "human rights" claims as hypocrisy to justify war that is waged for resources and geographical control, what coups/assassinations/terrorists are ClA ops, etc.) because these are all state activities and they are anti-state, at least in the current form in the West
Blumenthal's opinions on the situation of vaccines in USA is very libertarian
Clearly not a communist given he has never spoken positively about any AES and never explicitly supported enemies of the West
From all the libertarians I've interacted with, I think some communists give libertarians way too much credit. Sure, some of them claim to be anti-war, but not out of genuine concern for those affected or the "good" reasons. Not saying all libertarians are like this, or that libertarians can't eventually become communists, just something to be aware of.
Most libertarians only want to "bring the troops back" so the military can arrest, kidnap, extort and murder brown people and leftists and protect the money and property of the capitalists that libertarians believe they will become one day. Some libertarians I've met are even explicitly pro-war. They only pretend to not be pro-war as long as the government supports a war. As long as capitalists support war, they are all for it.
While probably not explicitly, Max Blumenthal seems to have praised China in how they have handled the COVID-19 pandemic and Xinjiang reeducation facilities.
I used to support Max Blumenthal, and I try not to accuse people for any reason of this, but he's lost my respect for being an anti-vax and a grifter.
I think some communists give libertarians way too much credit.
Polish ones are often ancaps, racists and antisemites and many have the weird mix of nazism-ancapism-monarchism taken from Korwin. They are actively working on being as little connected to reality as they can.