If you ate familiar or heard if Rad Rover look into Aventon Adventure 2. Better bike in every way and similar price point. Those 2 bikes are rear hub.
My buddy has an M2S All terrain ultra and likes it a lot. It is a mid drive and more money but still way less than the Quietkat, Bakcou, Rambo bikes. I will be going with an M2S most likely.
M2S also has a rear hub all terrain that is similar in price to the Rad and Aventon. I think the rear hub all terrain is on sale for $1400 which is $700 off.