You may be unfit, but you weigh very little which means you should bowl along well on a legal ebike.
You must also be small which will help wind resistance which comes into play increasingly above about 10mph.
First decision is really the type of bike you want.
A commuter would usually have a rack, mudguards, and lights.
In the UK that would be known as a hybrid, or trekking bike in parts of mainland Europe.
Frame style is another consideration, you may want a step through or possibly a bike with a dropped crossbar.
Both seen as ladies' bikes in the UK, but regarded as unisex in Europe.
The Bosch motor cannot be beaten for smoothness and general ridability.
It has torque and cadence sensors which tend to ask for a little more input from the rider.
Having said that, the torque sensor barely operates in top Turbo mode so there's really no worries about having to pedal too hard.
I've no idea what's available to you locally.
The Raleigh Motus, available in various styles, fits the bill.
It might be branded as something else where you are.
Picking up on the French theme, you could have a google for Moustache bikes.
They have some interesting design features compared to the other brands which can be rather identikit.
This UK supplier has three Moustache trekking bikes.
Moustache electric bikes have firmly established themselves as the leaders in building quality European Bosch eBikes. Learn about the Moustache range today.
www.e-bikeshop.co.uk