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RAM is so expensive, Samsung won't even sell it to Samsung
(www.pcworld.com)
This is a most excellent place for technology news and articles.
Last I looked
which was, admittedly, a few days ago
Google Shopping still has some retailers that have stock and haven't yet jacked their price up. Mostly dinky little companies.
https://shopping.google.com/
searches
https://hssl.us/silicon-power-64gb-ddr5-5600-mhz-udimm-desktop-memory-kit-2-x-32gb-5600-mhz-clock-speed-sp064gblvu560fd2ad/
Never heard of these guys, can't vouch for their reputability, but they have 2x32GB of DDR5 for $159.99 listed as being in stock.
The University of Virginia Bookstore
which I imagine is reputable
appears to be selling 2x32GB DDR5 for $245.95, and it looks like one can buy as a guest, so one presumably doesn't need to be a University of Virginia student or staff.
https://www.uvabookstores.com/product/829320?quantity=1
EDIT: I would advise, though, that if you plan to get memory in the near future, that you're probably better-off getting it ASAP, since I'm sure that there are going to be scalpers combing over all those small retailers before too long if they haven't gotten to someone yet.