If you want a wider road style tire how about Vee Tire Co.’s “Plus Size Speedster”. They have them as both 2.8” and 3.0” for 29ers.
https://www.veetireco.com/listings/plus-size-speedster/
FWIW, I have never actually tried Vee Speedsters but I looked at and considered them when I was looking for bigger tyres for my 26" (they also make 26X2.8, which is actually the same diameter as the Duro Beach Bum that I purchased).