Try to gamble on the casino provided by the members on this thread and try to avoid using VPN facility as some legit casinos are also operational in USA and accepts crypto like bitcoin and provides security and quick withdrawal process like Betway and check the links provided above.Please try to be compatible with T&C first of all then deposit your funds there.Most important you will find similar games on them which you like to play on slots also.
Without vpn there's not a lot of options for OP and usually the ones that accept players from the US require some form of KYC so that's probably no good for OP since he mentioned that he wanted something similar to betcoin.
Have observed several posters recommending VPNs in order to access some popular crypto gambling sites like Stake etc and some others advising to steer clear of them. This is a tricky problem to be honest.
Same, I even saw big streamers from the USA use Stake and Duelbits like it's their regular gambling site.