theres been good videos on this... and my net recommendations are....
cheap dice is fine, you dont need casino dice.
you should probably check for dice bias, which plagues cheap dice, but is less of an issue if more weight (eg metal) and rolls well
regardless, when rolling, roll all your 6 siders at once and let entropy set the order you write them down in.
see my how to here
https://github.com/vicariousdrama/howto/blob/main/bitcoin/generating-device-seeds-using-dice.md