.onion only imageboards
nanochan - http://nanochanqzaytwlydykbg5nxkgyjxk3zsrctxuoxdmbx5jbh2ydyprid.onion/ - Mid Activity
Hapas and active /g/. On coma as of now for reasons.
NeinChan - http://vvadkyuldkwon6za.onion/ - Mid Activity
Active /pol/.
ni-chan - http://plnemlsyla6h5t3nuoz2algzmy635ceuendnjwsmhwn2os5fxahshiad.onion/ - Low Activity
Poorly moderated /b/.

nanon's club - http://atrhmmi57c43utdtr6ye5lc5w3uedjqvahst5t76233za6ehyq2gy4ad.onion/ - Low Activity
Nanochan bunker made by infsan admin related to Chantopia/Patch discord drama.
Infinity-San - http://infsan7uxvnwirohy55qei3hgnbkw6nqi2q4tb7xxcgoiafvmqhicjyd.onion/
Looks dead and poorly moderated.
Glowchan - http://6oddffr7nmliu4hpaxb42gquo6ewvkxk7gecdtf2hsotwangbpwzz5ad.onion/
Secret.
Torchan - http://zw3crggtadila2sg.onion/
Don't care enough to give description.
nagadashi chan - http://sexualjthwu5pbofyjtw2fo4ktz6ob5qq5crnqqbqlqrkc6osreouqid.onion/all/