Any recommendations for honest and affordable car mechanic?

I’m really concerned my 2010 Kia’s water pump is leaking (either that or something else is) and causing overheating issues. 🙁 It’s a really bad time for this problem to crop up and I could really use a recommendation on someone local who can make the diagnosis and replace it for a good price. I’m considering doing it myself but can’t find a good tutorial video and still want to confirm that it’s indeed the water pump and not something else since I can’t catch it leaking (seems to be fine for days with reservoir at full and all of a sudden I’m out of coolant again).

Thank you for your suggestions