Great. I see a lot of references to DuckDuckGo’s service: they have not yet deployed any known v3 address. I wonder what your stance is on SearX as a model? They have a list of Tor instances here (http://searxspbitokayvkhzhsnljde7rqmn7rvoga6e4waeub3h7ug3nghoad[dot]onion/). I recommend replacing DuckDuckGo personally. I know that you made reference to the unknown connection between the published v3 onion for MetaGer; so perhaps that is out of contention for now.
I did try to update Footnotes in at least one Wiki entry to replace newsletter(dot)torproject(dot)org with its v3 onion - but was unable to do so. It seemed the {{Footer}} or somesuch was not editable.
There are some relevant v3 nodes for the crypto services that have been deployed.
Without being able to seemingly edit the Wiki as I expected I did not go very far into editing. Should everything besides the OpenPGP wiki be editable by world?