My e-bike helped me continue the sport after two hip replacements and I've lost 20# over 3 seasons of riding. Prior to buying an e-bike, I was lucky to be able to ride 10 miles in a 2 hour period on my old Trek MTB. Now, I'm out there for 5 or 6 hours and cover 50 to 60 miles!
The best advice I can offer is to take some time and read the informative posts here on EBR. By all means, ask questions!
If you aren't mechanically inclined, test ride a few bikes at local bike shops that will support their products. E-bikes often require more service than their conventional counterparts. Travel if you have to but ride as many as you can!
If you aren't physically fit, consider a step thru model. The ease of mounting and dismounting can make a big difference in your enjoyment of the sport. This is especially true if you're older. You may be able to swing a leg over a diamond frame bike now but consider the future. E-bikes are expensive and you'll want to be able to ride as long as you can. I see many riders, including myself, who ride step thru bikes. The stigma of a man riding a "girls bike" has all but disappeared.
The number of available makes, models and styles can sometimes be daunting. Test riding will help you weed out the ones that don't suit your style of riding.
Keep in mind when you finally find a bike you like, there may be a considerable wait time for delivery.
Again, don't be afraid to ask specific questions. There are a great many here that are willing to help.
Welcome to the forum and good luck with your search!