Over the years, and trying many different routines, I have gravitated back to DLing once per week for roughly 30 weeks out of the year. The other 19 weeks, I deadlift twice per week using the Finnish Deadlift routine I saw published in PLUSA about 15 years ago. That gives me two weeks of no DLing. When DLing once per week, I usually push for some kind of PR, whether it's a 1RM, 3 RM, 5 RM, or multiple sets with 1 minute rest in between, or a heavy single attempt with a 50 pound backoff for a triple, something that I can PR in compared to previous workouts in my training log.
The Finnish DL routine is roughly 6 weeks of stiff-legged DL's off a 5" block, twice a week, one light, one heavy, then 6 weeks of regular DL's off 5" block, twice per week, one light, one heavy, then 7 weeks of regular DL's on floor, twice per week, one heavy, one light. I have done the routine probably 24 times, and can't physically do the twice per week workouts off the floor.
I have never been able to recover enough between workouts along with all the other workouts gear toward other lifts. So I modify the last 7 week part to just once per week using the suggested, percentages, reps, sets scheme prescribed. I like DLing! I find it to be a comfortable exercise. I like doing it completely raw in both my workouts, and in competitions. I truly believe it is a 'true' test of one's maximal strength. Good Luck in trying to find what works best for you.