Im new here and I have seen that this can be a tough crowd at times.....but I understand where a lot of it comes from. I just got my first 4Runner about a week ago, but I was looking for wheels and tires way before that. I decided to go with stock 17" Trail wheels (I have a 2016 SR5). Ive put aftermarket wheels on every vehicle ive owned in my life. Just decided to stick with a stock wheel for now, plus I really like the look of them.
On the tires, for me it was a question of weight and comfort while still being aggressive enough to handle decent offroading/trails. Coming from a Powerstroke diesel truck (still have it), I was already worried about the huge lack of power in the 4Runner that I have been used to in the diesel. I knew that a big 285 or 295 E load range Toyo MT was going to weigh this little V6 down a lot. Long story short, I ended up ordering a set of Duratracs in a C load class in 255/75/17. Ive seen many pics on here of lifted 4Runners with this tire and they looked just as good as any 275/70 combo. Plus this tire only weighs 40 pounds each. The very popular BFG KO2 that lots of people have in 275/70 is another 15 pounds heavier per tire and in a E load range.
As a side note, let me say that going from a C load to a E load makes a huge difference in ride comfort (especially on a light weight vehicle). Anyone who says it doesn't is blowing smoke up your backside. I can say this from 12 years of experience riding around on 35" and 37" Toyo MT's.
Hope you find the right wheel and tire for your needs.