Looks like the standard pressing of Nevermind will be in shops again soon.
Radio-Active Records just posted about a restock and put some online, I'll drop the link below.
https://www.radio-active-records.com/product-page/nirvana-nevermind
Radio-Active has the Indie Exclusive up for pre-order
https://www.radio-active-records.com/product-page/converge-bloodmoon-i-2xlp-black-navy-neon-purple-mix-indie-exclusive