There is this site:
https://www.bitcoinblackfriday.comBut I'm just not sure how accurate these listings are. The ledger deal, for instance, says 40% off but it's not linking to a working page so I can't tell for sure whether they are getting these info from the services themselves, or they just updated dates from last's year deals (until the new ones are live).
From what I heard there will be several Ledger offers this year.
According to the German Crypto News website "Coin-Ratgeber.de" buyers of a new Ledger will get 40% off, if they buy a Ledger Nano S or Ledger Nano X. The promocode is
Blackfriday20 and the promo
starts on Monday, 23th November 16:00 (CET) and runs the whole week. Prices for a Nano Ledger S and the Nano Ledger X will be 35,40€ and 71,40€. Sounds like a pretty good deal to me, if you're still looking out for a hardware wallet.
Source: https://coin-ratgeber.de/ledger-black-friday-sale/ (German)
Remember: If you buy a Nano Ledger, always buy it directly from their website. Don't buy it from eBay or other sources. The ledger could have been compromised.