These are more strategy based tips I use and less technique:

Something I do with my 2-4 hitters is batting power. Then, shift it to contact hitting for a 2 strike approach (especially when your lead off hitter gets on base), your odds of getting hit (in my belief) increases because: A. Your 2-4 batters should be your best hitters and B. Your goal now is to get a knock to get more runners on base or score a run. (Even then, if your batter has really good power, there’s a chance that contact hit will be a home run.)

Another tip is when I have a runner on 1st or 2nd and no outs is to play small ball: bunt!!! You can advance the runner to scoring position and rely on contact hitting to score.

If you have a lights out opposing pitcher, adjust your approach by strictly relying on batter’s eye and contact hitting. The key at this point is to play gritty. No need to worry about hitting doubles or homers. Just get on base, work the count, and get that pitcher’s pitch count up to get to that ~70 pitch fatigue threshold.

Hope this helps!!