Another dreaded tire size question

I’ve gone down the rabbit hole of reading through many tire size threads already before posting this and didn’t see anything to specifically answer my question. I have the stock 18” TRD wheels (black with machined lip) which appear to be 7.5” wide. I wanted to upsize the tire to fill out the wheel wells more but I’m trying to avoid the E class or 10 ply due to the added weight. Does any have a recommendation or better yet real world application on their 3rd gen of a larger tire on these wheels without going up to that higher weight class? Any accompanying pics of your set is welcome as well. Thanks all.