As someone who works at the front desk of a tattoo shop, the most important advice that I could give you is that you should at least look at google reviews and the artist's social media to get a feel at who you are gonna get tattooed by. A lot of irresponsible artists don't know how to say no to things they aren't good at and will fuck you up big time for a couple bucks. In terms of skill and cleanliness, there are basically no regulations in the tattoo industry, so finding an artist who is clean, caring, and actually does the style of tattoo you want is in your best interest.
P.S. if you get to a shop and get bad vibes, don't be afraid to walk the fuck outta there.
Save your skin some serious trauma and find someone who can do what you are looking for.