Seymour's Garage 8411 Speedway Drive, San Antonio, TX 78230-5328(210) 341-1171‎
these people are legit but can be pricey.
if you want plugs/wires/brakes/checking belts or replacing belts/ all fluid changes, i can do all of this work and i would be happy to let him work with me if he wants. Find out what they do for a tune up and find out the cost and i will do it for less at my house.
If you still want to use a shop they are a good one.