I think the title says it all.
I saw a mention of an Omnivore integration I might check out, but it depends on Pocket still at least existing in the OS, and I would prefer to stay up to date. That and I am already proxying the Store through Calibre-web.
Wallabag or Omnivore are two alternatives, though I’m not sure how well it can be integrated into the e-readers.
Thankfully for current users of Pocket, according to this article, Kobo is planning to continue supporting the service even after the migration to Firefox accounts: