I'm with Tango - there are easier bikes to take on as a first bike than a Trophy. I think the Tracer is a good idea, and the VFR (not the Crosstourer - it's known to be top heavy) and perhaps the Africa Twin and the Versys 1000 should be on the list too.
But I'd really recommend waiting until you're ready to take your test, as then you'll have a better of what riding a bike that size feels like. And also at least go and sit on the bike before you make your choice. If possible get a test ride (some places offer test rides to people with new licences, but not all). Because which bike is right for you is a very personal choice - it not just about power and looks, but also weight and seat height, and width of the bars, and forward lean and suspension stiffness and so on.