This is probably the most popular menstrual cup brand. They have been around for a while and are also a B corp. This is such an eco-friendly option as well. The only complaint people have is comfort (just not being able to get used to it) and then ease of changing in a public restroom. Other than that, I have A LOT of friends who love these. Diva cup makes three different "models," or sizes, if you will. They are available at Target, Wal-Mart, CVS, Walgreens, and Thrive Market.
This is a newer brand on the market and definitely offers a lower price point for a menstrual cup. One option is a "menstrual disk." Unlike tampons and menstrual cups, FLEX sits just past the vaginal canal in the same place as a diaphragm and can’t be felt at all once in place. Flex claims to hold as much as three super tampons, and can be used for up to 12 hours. Flex also claims to help with period cramps, irritation, and dryness. Flex is not reusable–it is disposable but creates 60 percent less waste than a tampon or pad. There are different starter kits based on flow, and you can get on a subscription. For medium flow, for example, you get eight disks per month for $15.