Best place to start is by downloading the John Forester guides, like the one Effective Cycling. He rightly advocated that people on bikes need to conduct themselves like anyone else using a vehicle on the road. It is when cyclists go through stop signs or ride along close to the curb and encounter a parked car and then suddenly go out into the traffic lane and surprise motorists or when going against traffic that a collision is more likely to occur.
Drivers open doors in front of cyclists and make turns in front of cyclists (and sometimes over cyclists) and so I avoid streets with high levels of traffic and bike lanes in particular. One advantage of an e-bike is that one can go faster and stay up with the flow of traffic.
Important to be visible and that means avoiding dark clothing or at least having a bright yellow or dayglow green jacket or vest and don't cover it with a backpack.
A bright flashing tail light is something that can help and they are not expensive. The Garmin Bike radar Varia RTL515 is a rear light and a radar the alerts the rider when a car is approaching and can provide warning at distances of 140 yards. It provides an audible warning and also can be used with the Garmin display or with a Garmin Edge or the Wahoo bike computers to show a visible tracking as a vehicle comes closer.
I would also look into the Lumos bike helmets with integrated lights if you plan to ride at night.