Hall of blood and mercy trilogy K.M Shea Either 4 or 5 times. I just love the books so much with the whole world she introduced. It's also an interesting concept with the modern take on vampires (so so much better than the old just a monster type) and the other supernatural races intermingling as magic is slowly dying. And also it's clean that's a huge bonus!

Also Quantum League Spell Robbers by Matthew Kirby. 5-6 times. A great story about actuations (basically his sifi take on elemental magic.) This one is also clean but focused on a younger audience. Unfortunately the book has been out for a long time and his blog says the second is written but waiting on the publisher and hasn't been updated in all that time.😞