I highly doubt we need a guide on how to convert Bitcoin to fiat, a simple search would reveal may options of doing this.
The fact that there are a lot of options a search would reveal is not enough. Especially if it's a generic search over the internet, I'll expect to see there quite a fair amount of scam sites advertised before the really good methods are shown. Plus many do put centralized exchanges in the higher positions of their lists.
So one more list will not hurt. Let's just help by improving it.
1. Use a crypto debit card like the BitPay Card.
3. Use a P2P exchange.
This should not be the first in the list. The anonymous ways should go higher. So p2p should be the first option.
Plus: there are a lot of such debit cards, some better, some worse, some... better to fully avoid.
2. Sell crypto for cash on a central exchange like Coinbase or Kraken.
This brings even higher risks than the crypto cards because some of the banks still lock in 2023 the funds from crypto exchanges, asking for questions and asking for a lot of papers.
Plus it's 2 centralized businesses we're talking about.
Imho this should be the last in the list.
And some sort of warning: I recommend that if one uses this method he should consider using a different account (and bank) than the main account/bank (if you get funds frozen, at least you can still access those from the main bank).
4. Seek out a Bitcoin ATM.
Depending on the country and the amounts in discussion, these can be a fair option for those keen to stay anonymous, just... they're pricey. The fees are big. Sometimes a bit too big.
5. Bonus: Gift cards.
These could go much higher in the list too. I see them a much better option than ATMs for example.