Let me know if there is any that have increased their transaction fees.
A lot of casinos these days have adjustable fees. E.g. Roobet. They're actually the ones to avoid if transaction fees continue to increase and the mempool is super clogged, since they would actually follow market fees.
Stake and other sites with stagnant fees is great for now, but when fees decrease again they'll probably be less competitive.
Around 10k sats flat seems to be the lowest that you'll get for now, though, and that is already subsidised heavily by the casinos. Unfortunately that is the price to pay to gamble anonymously with crypto these days. Another reason why you should consolidate your inputs when fees are low.