My first two picks actually work together in a local-ish shop.
Dave Wah is a little more famous than when I first met him, but still not where he should be, imo. He makes buttery smooth stuff, his style reminds me of a more neotrad Myke Chambers almost. Big, bold lines and saturated color, simple and clean designs...good stuff. https://www.instagram.com/davewahtattoos/
Another guy I really enjoy is Troy Clements. His work is balls to the wall as far as size and placement, lots of huge gnarly backs and fronts, vicious animals, bloody daggers...I'm rarely bored by what he comes up with and the execution is top notch, imo. https://www.instagram.com/tattoosbytroyclements/
One last one comes to mind for me...I recently stumbled upon Danny Potter on Instagram, and almost every time one of his pieces comes up in my feed, it makes me smile. Obscenely bold lines and ungodly amounts of black, his stuff is just so charming and he deserves way more attention. https://www.instagram.com/blakstuff/