I spent a lot of time on the get up. It was my main lift for a few months, and led to becoming obsessed with the Bent Press. I would eventually train a bent press day and a Get Up day. A typical session was 20-50 reps, and swings, or deadlifts afterwards. Most days I would superset get ups with chin-ups. At least once a month I would do a session of 100 get ups with 24kg.
I would ramp up to a max single, and a few back off sets. Do combos and complexes with get up+windmill, side press, press, overhead squat, overhead carry, or reverse lunge. I would mix up the implements with kettlebell, Olympic barbell, Axel, loadable dumbbell, and thick dumbbell.
A kettlebell practice from my log book last year was:
KB TGU+WM+CU L+R 30lbx3+3+3, 40lbx3+3+3, 50lbx2+2+2, 60lbx2+2+2, 70lbx1+1+1, 80x1+1+1
KB TGU+CU L+R- 40kgx1+1, 44kgx1+1, 48kgx1+1, 80lb+30lbx1+1, 80lb+40lbx1+1, 80lb+45lbx1+1, (80lb+50lbx1+1)x2
KB TGU L+R- (48x3)x3 (some times I would finish with 2-3 segmental get ups or 2-3 AMRAP sets of roll to elbow(if I was working on my weak point)
2HS OTM- (48kgx10)x10
It took about 90 minutes, with a warm up with PVC dislocates, Brettzels, KB arm bars, KB PGSQT, KB SLDL, and KB rack carries, and a cool down of hangs, 90/90, and QL stretch.
That was an average amount of work for me. A Bent Press practice would look similar. I loved the get up as my main move. I got up to a solid get up with 80lb+60lb kettlebells in one hand, and 155lb 48 mm Axel. I have stood up with more, but I marked them down as a BM or Bad Make. If I make any lift that is not technically solid it goes in the book as BM, not PR. You are only cheating yourself.