These are 5 of my favourite trilogies that I have finished over the last year and a half. I absolutely loved all of these series and would highly recommend all of them!
Daevabad Trilogy by S.A. Chakraborty
Truly Devious Series by Maureen Johnson
Nevernight Chronicles by Jay Kristoff
The Impossible Times Series by Mark Lawrence
The Wayward Pines Series by Blake Crouch