sauderkraut
As this is going to be your first bike, I think you will need something rather docile but with enough power, handling and soul to keep your interest long after your first ride.
I think the Royal Enfields all will meet those requirements.
A quicky about the different Royal Enfields.
The older "Iron Barrels" are little changed from the original 1955 vintage bikes.
They can reach speeds of 70 mph but are happiest at 50 mph.
They are moderately labor intensive needing, in addition to oil/filter changes and chain adjustments, their valve clearance adjusted.
If someone has changed the exhaust they may need the various 'jets' (orifices that control the fuel mixture) changed.
They come with either a 4 speed or 5 speed transmission and the shift lever may be on the right or the left side depending on their age and the country they were sold in.
These are usually in the 2006 and older bikes.
The AVL is a redesign of the Iron Barrel and in doing so they improved the engine design.
It is capable of slightly higher speeds and will cruse at 60 mph. They usually have an electric starter, although the starting system is prone to breakage.
These are usually in the 2006 to 2009 vintage.
The UCE or new fuel injected engine was completely redesigned and its power was increased.
They are capable of 80 mph but are happiest at speeds of 65 mph or slower.
There is very little maintenance needed except for changing the oil and oil filter and they are proving to be quite reliable.
These are in the 2009-2013 vintage.
All of these Royal Enfields are uncommon in the USA and will bring people from far and near to ask questions and talk about them.
It isn't unusual to see total strangers taking out their cell phones etc. to take pictures of them.
Happy bike hunting.