I don't know why you ask this question.
https://bitcointalk.org/index.php?topic=5309733.0You were had a problem with stake with your €4,000, and you confirmed you have got your money back from stake. So, the best sportbook for you is Stake.com, or are you afraid to play on stake again and looking for other sportbooks?
He has a lot of choices. If he wants to try another sportsbook, he can do that as he please himself. But he got the experience through stake and it's up to him whether he's satisfied or not.
You have plenty of choices to choose from OP, you can take your time researching and trying each of them if you got a lot of time.
Another big broblem with stake is that they asked me KYC, and i use a BTC sportbook mainly cause i dont want to make KYC
You can try using Sportsbet.io because it's a sportsbook with good reputation on the forum, many promotions and special offers. Once I started using it, I sort of forgot about those other websites because I didn't feel the need to turn to them.
That being said, I gamble with a really small amount of money, whereas you seem to be into some high-stake betting. The thing is, Sportsbet.io reserves the right to ask for your KYC, so you should know that it can happen here.