A bolt is really a spring and when you torque a bolt what you are really doing is adjusting how much you are stretching the spring to preload it.

People tend to approach this with awe, magic and BS. It is not rocket science. Almost any decent torque wrench is adequate for your use.

I would buy a cheap 1/2" drive torque wrench and shop for a little better 3/8" drive that measures inch/lbs.

Now for the flame bait: As a teenager working in a motorcycle shop I was taught how to torque bolts by feel without a torque wrench. It can be done, I have checked myself with a torque wrench and I am pretty accurate. I use a torque wrench on critical parts anyway.