If the problem is pushing the bead off the rim initially, tyre levers don’t help as you can’t get them under the bead. I struggle myself with this on tubeless tyres, two options stand on the tyre and pull up on the spokes which rarely works for me or get a piece of wood but it against the edge of the rim and give it a whack. That always works.
If that's the problem, put the tyre in a vice as close to the rim as possible and close the vice. I had to do this once because the rim tape was extra thick and high friction.
I've never been beaten before, but these tyres are at whole new level ffs! 