I would look at something with a Bosch set up. It will be initially above your current budget but in the end will be cheaper and with much better support and long term availability.

If you can find a Gazelle dealer the Medeo T10 would be a good long term bicycle it has decent parts on it and is Bosch equipped and is from one of the oldest bike brands in the world and is generally cheaper than say a Trek or similar bike. Plus with your local shop you have actual support from them rahter than with some of the online brands a lot of shops won't service them and a lot of online D2C brands won't provide decent support to their own products.