I have the Rocket I want so I'd be looking for a companion for it; and not a second Rocket. Street Bob probably top of the list - if I could convince myself I didn't want a Speed Triple - followed by a Honda C90
Maybe T Max too. I rode one the other day at work. Just a short jaunt but enough to tell me those things just scream "go".
Something to go off-road would be pretty cool too. Tiger cub I'm thinking.
Then there's the Jawa and sidecar......... sigh.
Bottom line though; give me a sh1t load of cash and I'm still keeping the Rocket as #1 stead.