Fandom wikis are specifically fan-created sites which could be auto-selected to any appropriate fanpage relationship.

We could add these to the sidebar too, but it can be problematic to decide what to use. Each Fandom wiki is independent, so just showing "Fandom" is not very helpful - there might be several entries for the same entity in different wikis and there's no info about what wiki that would go to anyway. Just using the wiki domain can also be problematic - the Fandom logo plus "nin" for example might not be very clear as a Fandom sidebar entry, and there's also the question of what to do when linking to a full wiki (e.g. NIN the artist to nin.fandom) vs linking, say, a specific work or release group to a specific page in the fan wiki.

Original content:

I'm not 100% certain yet, but it seems that the page title could maybe be used, as a few known examples have shown. it seems to follow the pattern of:

[article title] | [wiki title] | Fandom

a few examples:

• https://mumbleetc.fandom.com/wiki/Songs_About_The_Pink_One_(and_others)
• https://mlp.fandom.com/wiki/Winter_Wrap_Up_(song)
• https://lapfoxtrax.fandom.com/wiki/Squaredance_(album)
• https://mlpfanart.fandom.com/wiki/Everfree
• https://bionicle.fandom.com/wiki/Hau