I just look where i can pay with gift cards and buy the giftcard at https://app.thebitcoincompany.com/signup?ref=MRRJ18 with bitcoin and get 4-5% sats back.

Hotels.com, Airbnb or others are mostly available.

Then there is https://satsback.com/register/0l5JQPjOYQam2qXw where you get sats back when booking via their referal.

After booking I immediately buy the btc back with fiat.

Use my referal to get bitcoin rewards if you like the idea!