https://wolf.bet/casino/dice

WHAT ARE THE MIN BET AMOUNTS IN FLASHBET MODE?
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I believe this is what you are looking for?

He is looking for an alternative site, he knows about wolf.bet already so he use wolf.bet as the example that provide flash bets.

Hello, i am looking for some reputable dice gambling websites with flash/instant bets like wolf.bet has

You can try duckdice, there is flash bet feature and I think it works the same as what you see in wolf.bet

For more information related to the flash betting feature in duckdice, you can check it here https://duckdice.io/faq#aboutflashbet