nostr:npub1qdcakl75gd7wv0nqmmwrz09ddm5tzl7xj8lq2gclng2qzd8up5yqjpzclt is a great one, if it’s not already on your list.
Covers a range of cybersec and nostr-related stuff as well. It’s informative and entertaining for the less-technically proficient, and detailed enough for those who are familiar with the subject matter to be engaging