Based on this product's specifications, here are some alternatives and similar models
Breast Shells MAM size S MAM 831997 for nipple protection and milk collection
Summary description:
MAM breast shells size S (model 831997) are designed to protect sore or cracked nipples and to collect leaking breast milk. Lightweight and shaped to fit inside a bra, they provide a barrier between clothing and nipple, reduce friction and allow discreet milk collection. Suitable for postpartum use, nipple healing and everyday nursing care.