I bought a lot of them off Amazon but I'll be honest, may have liked how they looked but hated how they functioned. I found it easier to wear a low-cut or v neck shirt that could be pulled down easily or to do the 2 shirt option. You put a spaghetti strap under a normal top - lift normal top, pull down spaghetti strap. I mostly nursed at home and it didn't matter if I was covered or not there! If I was out and about, most places have private spots where you can nurse. Even at department stores they have changing rooms 🤷 And most the time I used a nursing cover if people could see me.
H&M
Check out Latched Mama. They're on the pricier side, however, I wear them pregnant, breastfeeding, and neither. They're great quality and often have discount codes and sales.