What a good formula brand for really sensitive stomachs?

Breastfeeding is literally taking the biggest toll on my mental health and honestly I don’t think my husband truly gets how draining it is, like I feel so tired of being a mom. My daughter is currently cluster feeding and I’m literally feeding her more then I’m sleeping cause even when she’s sleep there’s so much around the house that needs to be done, dealing with our pets and cleaning and right when I’m done it’s feedings or a bath or a diaper change and the only time I have freedom to myself is when my mom is off cause she comes and she watches the baby on the weekends cause I work in the mornings, and I just want to find her a formula good for her so I can sleep a full night, at least a simi night I have to get up every weekend at 4am to be to work on time and pumping is like useless cause she’ll drink 6 ounces and then be okay for about 20 minutes then scream her head off for more and won’t stop screaming without milk, she’s 3 months rn and idk if I can keep up breastfeeding, it’s like even when I try to get something done I leave her with her dad and less then 10 minutes later he’s like she’s hungry and I can’t even prove him wrong cause she literally eats every time even if I fed her before leaving her with him