As a coach, I like the work in a range of reps in one deadlift workout. Start with 60-70% 1RM and perform 8-10 reps. From this point, slowly increase the weight and decrease the reps until you reach the 1-3 rep range. This will increase power, strength, and hypertrophy all in one workout. Deadlifts are a great exercise to really push your weights. A lot of people enjoy going for PBs and reaching new 1RMs. The most important thing is to make sure your form is on point, not how many reps you can do.