I2P always looked more promising to me, and more open about its threat model [1] and potential mitigations. But it's not built for browsing the open internet, so it has a somewhat different niche.
In other countries you may not have such luck.
If your threat model is anything weaker than a hostile nation state then Tor is still probably good enough to use as a darknet. If you're doing anything illegal over Tor then you probably should be more worried about OPSEC failures or rubber-hose cryptanalysis.
The best place to hide a tree is in a forest.
If you have both 'normal' users and spies connecting to this host, who will tell who's the spy?
OTP has to be delivered preserving secrecy. Transmitting a public key only needs to preserve integrity.
It's better than Tor in a few ways, in particular how it handles DDOS attacks. I2P is also more focused on facilitating hidden services (eepsites) than being a clearnet proxy.
There's also Yggdrasil, although it doesn't seem particularly concerned about anonymity.
https://sourceforge.net/projects/linuxkodachi/
Although it's not nearly as minimalistic as Tails.
Here are a few options.
Sure, they can listen in on you all they want, but what good is any of that if they can't use it against you in a court of law?
You probably don't want an area free from censorship most people don't. I browse with safe images enabled when searching google images. Once in awhile I'll open it up and see a world that didn't exist before. I don't think that world should be removed even if I rarely visit.