It’s almost a 2 year old post now, but I asked a similar question and got a lot of great advice. So this post might help the OP:
Recommend me an e-bike!
The bike I ended up choosing, a HeyBike model, is probably not a brand the OP would consider since it’s a lower-end brand, but my bike has held up great over two seasons so far of riding over bumpy, potholed Michigan roads. I’ve been very happy with it, especially considering the ridiculously low price I paid. But it’s a Chinese company, so who knows what the future of HeyBike in the states is going to be.