I Don't Know What I Want

Your local Triumph dealer would be the best place, I'm sure they would have demo bikes available

 

It would also depend on whether you wanted new or second hand as there are some discontinued models that definitely fit in to that category........Thunderbirds (Storm, LT, Commander etc), America, Speedmaster, Trophy, Rocket, etc

 

@SteveXFR:
I had a similar "luxury problem." First you need to be clear where and in what way you want to manage most of your routes on a bike. My second step is then always a "test sitting" and then if possible, also a test ride with the contemplated bikes. All the bikes you listed have their advantages and disadvantages depending on your possible range of use. I have therefore chosen a different path and acquired 2 bikes. One for real long-distance travel for distances > 600 km. After the TIGER 1200 now a Honda NT-1100. For shorter stages and small tours a T120 Bonneville Black Edition. So I have covered all my bike requirements and am satisfied.

 

If you didn't have the Bonnie SE I would have suggested the T120, its night and day with the 865 engined models but maybe one of the newer models will be better. I was looking at the new Trident 660 as my new steed , thought it would tour better and be better on twisties, but have decided to stick with my T120.

 

I have a 22 plate Speed Twin, stepped down from sports bikes, but I love it. The seat is the only downside in that it is deeply uncomfortable . I have an after market seat on the way

 

Nothing will beat a street triple for windy road fun, its so agile and light! Well, maybe a 790/890 duke. The Trident is fun but I found the suspension too harsh over bumps.

 

I love my Street triple RS. but from what you've outlined I think a Speed Twin might be more your cup of tea. As always, we here can give you pointers, but only you can make the final choice.

 

My T120 was really disappointing until I put a one tooth smaller gearbox sprocket on it. Now the gearing is spot on and I can actually use 6th. 30 in third and 40 in fourth instead of never being in the right gear and take off and pick up are hugely improved.