Motorcycle for a beginner?

I'm about to begin my basic motorcycle riding lessons and honestly have no idea which motorcycle to purchase -- I'm looking to purchase a used cruiser. Honda Rebel or Kawasaki Vulcan maybe? I'm about 6'00" / 200 lbs.

Kawasaki ninja 300. Its good for beginner.

I have owned a rebel. They are great bikes up to about 45. Although they will travel up to about 65mph they begin to vibrate at about 45 and and don't handle well at highway speed. The Vulcan would be a better choice if you ever plan to ride on the highway.

When I was just getting into riding, I wasn't sure if I wanted sports or cruisers. I ended up going down the sport route, but not without doing some digging into cruisers.

Some of my starting cruisers that I looked at were:

Honda Spirit 750
Honda Shadow 750
Yamaha V-Star 650
Kawasaki Vulcan 750
Suzuki Boulevard C50
Triumph Bonneville

Those are all kind of a middleweight cruisers. You could do the 500cc or 250cc cruisers, but honestly, I think unless you are a very small person, they are kind of a waste. The Honda Rebel is an awesome bike as a trainer, but moreso as an entry level for a smaller male or woman.

Unlike sports bikes where power is your problem, cruisers problem is the weight. So learning how to control low speed maneuvers with a potentially 600+ lbs machine.

That is why sport bikes should start in the 250-500cc range, but cruisers can easily start in the 650-850cc range.