I can agree with that. Now that I think of it, the first couple of years of serious training for me was spent actually doing the lifts I wanted to get stronger at. I still go through periods of a few to many weeks grooving lifts with the actual lift or a very close variant that focuses on a weakness.
You’re asking for a particular rep range, but you might want to try either block or linear periodization to some degree or another.
Here’s an awesome thread for linear periodization based on the way Ed Coan trained. If you don’t know who he is look him up.
Here’s a thread on Westside type training:
There’s also block periodization. You might start with a 4 week block with higher volume, then move to block focusing on power, then one focusing on heavy weight.
And when you see the word power or speed as it related to strength, think of Fred Hatfield’s view on power and compensatory acceleration.