Not sure what you are looking for. The Overloud Custom head is really awesome sounding and versatile so I'd play with that first. There aren't a lot of effects included in the Sonar version but the ones that are are pretty solid. There also isn't much in the way of cab stuff but if you learn how to move/switch the mic's around there is some really cool stuff you can do.
Seriously you should take a long look at the manual because TH2 is set up kind of weird IMO and many of the more useful features are hidden and really different than how you'd expect them to be. Just open up an instance of it and work your way through the manual (it's not long).
Also go to your Cakewalk store account because there was an expansion pack that got sent to us so that should give you some more stuff to play with. I haven't installed it yet myself though.
Oh and go through all the presets. It'll help give you a better idea of the diversity of the content and how to use it.
Cheers.