Look to the Sustained Power Build and Century Specialty plans. Give us some more detail about your climbs.
But in general, climbing is all about sustained effort at levels from Tempo, thru Sweet Spot and possibly Threshold. Training for this requires steady loading in longer intervals at those levels. So see the plans above for proper workouts.
Also consider your gearing and what cadence you will be using. When possible, add gearing that will allow “normal” cadences from 80-100rpm. Try to avoid consistent use of lower cadences from 50-70rpm if possible.
That said, I also do low cadence work in those workouts above, to prepare for those times when you are out of gears and are stuck at those lower cadences. It may be important to prepare your body and mind for those types of efforts.