Probably worth investing but pick the cheap ones like XSPEC or Deeponion. The Ubuntu community started to give attention to PIVX lately that they are developing wallets as this is just what I've read. They are not actually from the darkweb but seem like they are also into blockchain projects right now. I don't shill for them as I don't have any PIVX but this is just what I've read recently.
Thanks for this, target. I will try to do some more reasearch on these both coins you've mentioned.
Everybody are talking about Monero which is okay. I am a little bit surprised that nobody is talking about Zcash using zkSnarks technology, which is probably also very efficient in terms of privacy protection. Even one of Monero core representatives said, that "zkSnarks provide much stronger untraceability characteristics than Monero".