Users of Privacy Redirect and LibRedirect may find it worthwhile to check out farside [0]. The long lists of mirrors can be replaced with singular farside links (e.g. https://farside.link/libreddit) which will always redirect to working instances.
I find it mildly amusing that to help redirect away from centralised services, there's an uber centralised service to help.
Not just that, the suggested advice to replace all instance URLs with farside.link defeats the extension’s secondary privacy feature by sending all YT/Twitter/IG URL requests to Farside’s servers.