I think I asked the same thing last year but what the heck. I do recall last year learning about some events I'd like to give a go at some point.
Here is my initial list:
Tour de Lake Lure-100k
Assault on the Carolinas-100k
Mountains of Misery-100 miles plus 3 more miles of absolute Misery
Blue Ridge Parkway Tour-My brother and I have are doing a supported 7 day ride (my wife) of the length of Skyline Drive & the BRP-600 miles & 62,000' of climbing
Ride the Rockies or Bicycle Tour of Colorado-week long tour
Tour de Wyoming-week long tour
Charlotte Motor Speedway Time Trial Series-6 events over 6 months
Blood Sweat and Gears-100 miler in the NC mountains
A century in Va
A California Double
Cross Country Tour
What are you planning and what else should I consider?