There’s several versions of the Core 10k made by different people. The common point being that those are the top 10000 most used words in a Japanese newspaper.
In terms of authors, I trust @hinekidori’s work. You can find his version of the Core 10k here. He tries to give a similar experience to Wanikani when it comes to learning.
Personally, I don’t use Anki. I use another platform called Kitsun. The same author is much more active on this platform nowadays, and me, him and the rest of the community really invested in improving the version of the deck that’s on Kitsun. It’s a subscription-based platform however. Click here to see Kitsun’s thread on these forums.