Probably a bit sportier stance than you are after, but this is on my short list of Japanese bikes to own some day.
The ZRX1100 Kawasaki
You can typically pick them up for about $4500.00 in good shape. They are freight trains and dead reliable. A modern version of the Universal Japanese Machine. Should be fairly upright seating for you and the passenger, but not as much as a cruiser.
However, it'd be about 100x more fun for me to ride than a Shadow or a VTX. Especially when I was alone and guilt free. I've ridden V-star 1600 and Vulcan 1500 bikes.. they feel a lot like my riding mower and turn corners about as well
If money is no option, check out the big Triumph Tiger.
I LOVED the 1050 triple engine I had in my speed triple. The tiger is the adventure touring bike with luggage and even more upright seating. Triumphs are as reliable as Japanese bikes. I serviced mine on my own because there's free OBD software. I could remap the fuel injection myself with my laptop or run diagnostics on it, etc... But if you need dealer support they're less available. However they're as reliable of a bike.