How to increase milk supply?

I need all the tips on upping breast milk production. I’m producing more than enough right now. But we’re slowly giving more and I’m not producing any more than I did when I started. So I just need to preemptively start trying to up my production so when she’s on more than 3-4 ounces at a time I know I’ll have enough. My freezer stash is big for her only getting 2-3 ounces but if I need to tap into it it won’t last long. Thanks mamas!!