I've seen Queen Chrysalis figures all over my shelves and online — there are plenty of toys of her if you know where to look. Hasbro produced multiple versions during the 'My Little Pony: Friendship is Magic' run: small blind-bag minis, larger deluxe playsets, and some villain-themed packs that include Chrysalis. Funko also made a 'Queen Chrysalis' Pop! that shows up often at conventions and on resale sites. Beyond those, there are licensed statues and collector figures from smaller makers, plus a healthy aftermarket of custom resin statues and repaint commissions on Etsy and toy-collector sites.
If you're hunting for one, start with big retailers like Amazon, eBay, and specialty shops such as Entertainment Earth or BigBadToyStore; local secondhand shops and comic cons are great for scoring variants or older releases. Prices range a lot — tiny blind-bag style figures can be under $10 new or used, deluxe Hasbro figures often sit around $15–30, Funko Pops usually go for $10–40 depending on rarity, and high-end customs/statues can jump into the hundreds. A word of caution: there are bootlegs and uncertified knockoffs on marketplaces, so check packaging, Hasbro/Funko logos, seller feedback, and clear photos before buying.
Personally, I got my first one as a fluke at a flea market — a slightly scuffed Hasbro Chrysalis that I cleaned up and now keep with my seasonal display. If you want something specific (movie-style, show-accurate, or a particular color variant), message sellers for photos and look up the wave name or SKU; communities on fan forums are really helpful at IDing versions if you post a picture.