Find accommadation in Thailand at the best price
If Booking.com is the best-known hotel reservation website (and the one that spends the most money to trust Google results), this serious website that is part of the same group very gives the same warranties and often offers better final prices for the same type of room in the same hotel in Thailand: Agoda.com
. This is very often the case since COVID (it was less the case before).
Otherwise, you can use this hotel room price comparator to find the booking site that offers the cheapest price for a room in a same hotel: Hotelscombined.