Recommendation needed: auto shop that do A/C maintenance

[Jin Wen]

I need some recommendation on what to do on the A/C of my Subaru 2000
outback: It got almost 130 K miles so far. The A/C stop cooling since
the winter season. I need to bring it to a shop so they could take a
look and give me an honest estimate. Anybody knows a good one that
does that?

Thanks,

Jin