I've noticed that a lot of electric bike reviews talk about motors, batteries, and range, but very few discuss something that matters just as much for taller people: proper fit.
If you're around 6'2" to 6'8", not every ebike is going to feel comfortable, even if the specs look great on paper. I spent quite a bit of time comparing models and talking with riders before helping a friend choose one, and the biggest lesson was that frame geometry matters more than advertised rider height.
Many tall riders end up feeling cramped because of short reach, low handlebars, or limited seatpost adjustment. After looking through dozens of options, I found that bikes with 19" to 21" frames and adjustable stems tend to work much better. Fat tire models are often a good choice too because they usually have larger frames and a more upright riding position.
In terms of price, most quality electric bikes that properly accommodate taller riders fall between $1,500 and $3,000. Below that range, frame sizing options become limited. Some of the better-known choices include Aventon, Ride1Up, Velotric, and Specialized, depending on your budget.
One thing I wouldn't do is buy an ebike based only on motor power. A 750W motor sounds great, but if your knees are too close to the handlebars or you can't fully extend your legs while pedaling, you'll never enjoy riding it.
For anyone over 6'2", I'd recommend checking the maximum rider height, inseam recommendations, and frame reach before looking at battery size or top speed. A properly fitted ebike can comfortably handle 20-40 mile rides, while a poorly fitted one can feel uncomfortable after just a few miles.
For tall riders, fit comes first. Everything else is secondary.