Earlier quoted context omitted.
Just use ~3 VPNs in a nested chain. So an adversary would need data from all three. Better yet, have the middle one be in a jurisdiction that doesn't cooperate with your adversary's.
Are VPNs legal in China? It would be hilarious to set up a chain of VPN connections that are each in a jurisdiction that will not cooperate with one another. E.g. one connection each in China, Russia and USA, and three more in the opposite direction of geopolitical allegiance if you’re super paranoid.
More generally, as long as you're not interacting with domestic Chinese people, authorities don't care much about what you're doing. That's what I've seen providers claim in darknet forums. And that was my experience when I leased VPS in Hong Kong. Once I made it clear that I wouldn't be interacting with domestic Chinese people, all was cool.
I have used one Russian VPN service, Insorg. They're one of the oldest. I've read about others, but don't recall names. And it's my impression that Russian authorities also mostly care about interactions with citizens.
So anyway, I typically start with a mainstream VPN service. Then I chain one or two notoriously hard to coerce ones. And for Mirimir, IVPN is the final one. Because I've written stuff for them, basically, so using IVPN earlier in chains would be stupid.