So I've had a DRZ supermoto for a few years now but I would really like something a bit better. I have to wheel setups for it, love it with the knobbies off road and with the slicks on road

What would people recommend to get that would be an upgrade from it but still do the same things (just better)? Needs to be street legal.

WR450? EXC450? Husky450 ?????????