"'Is this a real journal?' is now a question every reader, reviewer, funder and university has to ask. And the tools for answering it have not kept up.

"The advice since [Beall's list ended] has been consistent: don’t filter out the bad, filter in the good. Use allow lists.

"So that’s what we’ve done. Every source in OpenAlex now has a listed_in field... If you want to keep predatory journals out of a query, you filter in journals that somebody you trust has vetted."

https://blog.openalex.org/trusted-journal-lists-come-to-openalex/