Op since World Cup has not started, you would have tested five to ten casinos in the forum to know their withdrawal strength and stress and choose from your own experience. There are lot of sports betting casinos in the forum that are doing well. And what I will advise you, in the world cup, you can use up to 5 casinos to see their different odds and payout.
I'm currently running a massive live testing on 10 big sportsbook on Stake, Duel, Gamdom, Duelbits, Rainbet, Sportsbet, BC Game, Bitsler, Winz and Shuffle.
Real dep, playtime and withdrawal on chain, record saved,
Many surprises here...Failed Instant withdrawals, Failed Withdrawals ( longer than 30 min ), KYC checks before limits, Wrong terms in TOS, Support Fail, Misleading bonuses on some of the biggest brands in the industry..
However, some are also immaculate.