Hey Lexi,
Search Amazon for "progesterone cream" and you will find many brands available.
The "Now" brand is probably the most economical and I think it is as good as any other.
This link goes to the Now 20mg product.
https://www.amazon.com/NOW-Solutions-Progesterone-Cream-3-Ounces/dp/B0013OXGNU/ref=sr_1_9?crid=CKZJRAEL7T2F&keywords=progesterone+cream&qid=1703783170&sprefix=progesterone+cream%2Caps%2C323&sr=8-9
20mg is a good starting point. There are other brands that have creams with 50mg and 75mg dose, such as Hello Pharmacist brand.
I totally agree with Cagedmuscle -- starting at a low dose and maybe even keeping it low, is the way to go.
Karen