Hey man, welcome. Saw your Mattis shirt, Magpul hat and AR in the other threads... You're going to fit in great around here.
Not sure about many other Texas members yet, the majority are currently from AZ and SoCal with a smattering of everything else.
As for the wheels, it's pretty much all up to your own preference as long as you go with a good brand. Try to stick with something in the ~4.5" backspacing range for best results.
Biggest 17" tire sizes on stock suspension pretty much leaves you looking at 265/70R17 or 275/70R17 as a rule of thumb, but even with those tires on aftermarket wheels you will most likely have some rubbing. Minor plastic trimming and removing the mud flaps is usually enough, but every truck is a little different and even with 265s I was ever so slightly touching my cab mount with -12 offset wheels on the stock suspension.
Make sure you read the threads on adding aftermarket or TRD Pro grilles to our newer trucks with TSS, sometimes they require modification or extra parts to make it work with the radar module behind the factory emblem.
Toppers. will be like the wheels, pick one you like from any reputable brand and you'll be good to go.