You can try Smolov method for squating
How Smolov Works
The Russian Smolov Squat routine is split into 3 phases for a total of 13 weeks. As always, start with a weight you're 100% sure you can Squat instead of starting too heavy and hitting plateaus. The 4 Smolov cycles.
Weeks 1-2 - introduction cycle to prepare your legs. Week 1 you Squat 3 day in a row working up towards heavy singles, rest of the week is stretching to speed up leg recovery. Week 2 you Squat every other day.
Week 3-6 - the base cycle where you'll Squat 4x/week for 3 weeks. 4 sets of 9 reps Monday, 5x7 Wednesday, 7x5 Friday, and 10x3 reps Saturday. The weight increases each workout, each week. Week 4 is a rest week where you'll only Squat once and attempt to break your PR.
Week 7-8 - the switching cycle is a 2 week deload to give you a well deserved physical and mental break before the next cycle.
Week 9-13 - the intensity cycle where you'll only Squat 3x/week, but 44% of the time it will be using weights between 81 and 90% of your maximum... and for 4 weeks on. Most guys agree this is the hardest part of Smolov. Week 5 you attempt to break your previous Squat PR.
Do NOT Deadlift with Smolov. One, it would mess with your Squats. Two, Squats work similar muscles as Deadlifts, so it will almost always increase anyway. Just do some Bench Press, Pull-ups, band pull-aparts and lots of stretching.
The full routine is as follows (taken from this article, which offers a lot of good advice):
Week 1
Day 1 – 3 x 8 @ 65%, 1 x 5 @ 70%, 2 x 2 @ 75%, 1 x 1 @80%
Day 2 – Exactly the same as day 1
Day 3 – 4 x 5 @ 70%, 1 x 3 @ 75%, 2 x 2 @ 80%, 1 x 1 @90%
Week 2
Day 1 – 1 x 5 @ 80%
Day 2 – 1 x 5 @ 82.5%
Day 3 – 1 x 5 @ 85%
Week 3
Monday – 4 x 9@ 70%
Wednesday - 5 x 7@ 75%
Friday – 7 x 5@80%
Saturday – 10 x 3@ 85%
Week 4
Monday – 4 x 9@70 + 20 pound increase from Week 3
Wednesday - 5 x 7@ 75% + 20 pound increase from Week 3
Friday – 7 x 5@80% + 20 pound increase from Week 3
Saturday – 10 x 3@ 85% + 20 pound increase from Week 3
Week 5
Monday – 4 x 9@70 + 30 pound increase from Week 3
Wednesday - 5 x 7@ 75% + 30 pound increase from Week 3
Friday – 7 x 5@80% + 30 pound increase from Week 3
Saturday – 10 x 3@ 85% + 30 pound increase from Week 3
Week 6
Monday & Wednesday – Rest
Friday – Work up to max single
Saturday – Work up to max single
Week 7 & 8
Deload with no recommended rep scheme. Keep max loads below 60% 1RM and don't go to failure. Rest.
Week 9
Monday – 1 x 3@ 65%, 1 x 4@ 75%, 3 x 4@ 85%, 1 x 5@ 90%
Wednesday – 1 x 3@ 60%, 1 x 3@ 70%, 1 x 4@ 80%, 1 x 3@ 90%, 2 x 5@ 85%
Saturday – 1 x 4@ 65%, 1 x 4@ 70%, 5 x 4@ 80%
Week 10
Monday – 1 x 4@ 60%, 1 x 4@70%, 1 x 4@ 80%, 1 x 3@90%, 2 x 4@ 90%
Wednesday – 1 x 3@ 65%, 1 x 3@ 75%, 1 x 3@ 85%, 3 x 3@ 90%, 1 x 3@ 95%
Saturday – 1 x 3@ 65%, 1 x 3@ 75%, 1 x 4@ 85%, 4 x 5@ 90%
Week 11
Monday – 1 x 3@ 60%, 1 x 3@ 70%, 1 x 3@ 80%, 5 x 5@ 90%
Wednesday - 1 x 3@ 60%, 1 x 3@ 70%, 1 x 3@ 80%, 2 x 3@ 95%
Saturday - 1 x 3@ 65%, 1 x 3@ 75%, 1 x 3@ 85%, 4 x 3@ 95%
Week 12
Monday – 1 x 3@ 70%, 1 x 4@ 80%, 5 x 5@ 90%
Wednesday – 1 x 3@ 70%, 1 x 3@ 80%, 4 x 3@ 95%
Saturday – 1 x 3@ 75%, 1 x 4@ 90%, 3 x 4@ 80%
Week 13
Monday – 1 x 3@ 70%, 1 x 3@ 80%, 2 x 5@ 90%, 3 x 4@ 95%
Wednesday – 1 x 4@ 75%, 4 x 4@ 85%
Sunday – Max attempt