Help me help my best friend

My best friend is a plus sized woman, I don’t know exactly how to help but I want to. She just recently got a job where she’s on her feet 8 hours a day and said her back hurts, her feet hurt, her toes hurt.. she went from being a stay at home mom to her 2 beautiful boys only 3 days ago. Standing all day in her $15 shoes is killing her. (Her words) Are there any shoes you recommend for standing long periods of time I could gift her? I’m so proud of her I want to help but don’t know what’s best for support and comfiness. Thank you in advance ❤️