Lots of things to consider when picking a tt, the tow rating is the last one as you’ll exceed many other ratings before reaching it.
First is payload. Check your door sticker for your trucks rating. That number must include the weight off all people in the vehicle, gear, and the tongue weight of the trailer. Any weight added to the truck beyond 150lbs for a driver also reduces your tow rating pound for pound. Newer Tacos using the new SAE ratings include 150lbs each for a driver and 1 passenger.
A typical tt carries around 13 percent of its loaded weight on the tongue. That’s 650lbs for a 5k loaded, not dry, trailer.
A 5k dry trailer will exceed 6500lbs once it is optioned out and loaded. With a Tacoma lightly loaded with passengers you’re going to want to keep the tt under 5k loaded.