tire sizes 2015 trd off road

Im sure somewhere in this forum this has been hashed over , but Im curious to what the largest size tire I can change to without lifting or changing out the original TRD wheels, also without any issues with false speed readings, or trans shift issues , my current tires are the 275 65 18's , looking for something that would fill the wheel wells up a bit , a bit more aggressive but not look out of place , mostly run on the highway and city streets anyway

 

https://www.tundras.com/threads/largest-tire-you-can-run-stock-for-all-generations.9762/

Anything under 34” won’t mess much with shifting or speed readings.