Want to stop pumping

Br

My baby is 9 months, and eats about 4-5 bottles a day 7oz in each. I’m doing baby led weaning but the only things he really likes are, yogurt, Cheerios, peanut butter and shredded cheese. I really want to stop pumping, I’ve been exclusively pumping for 9 months. But he won’t take just a straight bottle of formula, I can supplement with it. And my freezer stash is near empty because he’s gone through some growth spurts and needed more than I could make. What do you recommend??