How much would a used Nissan Frontier or Toyota Tacoma cost?

I've been looking around for a Nissan Frontier or a Toyota Tacoma as my first vehicle. Which of these vehicles will cost, on average, $6000 and below. And which years?|||You are more likely to find a frontier in that range rather than a Tacoma. Even then, trucks are somewhat hard to find for a reasonable price right now, more so tacomas.