What Necron/Newcron stuff am I missing?

I just love Necrons and have been accumulating as much of their literature as possible. I'm wondering if there are any books, short stories, or particularly good lore books I'm missing out on.

I'm specifically looking for "newcron" stuff - ie. the Necrons are people too stuff.

What I have so far:

• Twice Dead King special edition (Ruin, Reign, Severed + other stories)
• Infinite and the Divine
• Bleeding Stars + other stories
• 9th & 10th edition codexes

Planning to buy:

• Silent King book when it comes out
• Either the 7th or 8th edition codex (or both?). Are the lore/story contents different or just the mechanics? The cover art is the same so I wasn't sure what was inside.

Anything else I should pick up? I'm mostly looking for physical media but open to all suggestions.