We can bring our link out in situations where the desire to find a fork is likely.

Example:

• archived repos https://github.com/reactjs/react-autocomplete
• repos that have not been updated in a 6+ months (and have 200+ stars?)

For the archived repos we can just show a textual link in the yellow archived bar:

This repository has been archived by the owner. It is now read-only. [Find forks]

Perhaps there should still be a minimum amount of stars or forks before this link shows up. Showing it on 10-star repos is useless, example:

• no button please: https://github.com/fregante/setup-git-token