Get recommendations, and keep returning to a good shop.
Or DIY. You can rent tools from Autozone(?) and probably other places, or just buy what is needed. Some of the smaller garages will likely do work for you on the cheap--if you walk in with a box of struts and ask to have the spring swapped, even if they charge $100 to do it, you know the rest of the job will be done right. [And most corner shops would charge less for a 5 minute job, just saying, sometimes overpaying for a job you can't do is still cheaper than paying for the whole job.]