>>2847091
you can get super nice ceramic ones from small time makers online for not much money. Especially from asia where they're not seen as just a meme. This guy's are considered some of the best and he has some down around $40:
imperialcityocarina.com

also keep in mind that smaller ones are dramatically louder and more consistent. Bigger and lower-pitched ones are quieter and more difficult to make well. I like the big ones because they're so different and mellow but they're harder to play and also not as useful for jamming. A bass ocarina gets drowned out by a guitar, meanwhile a high-key soprano could be heard over an orchestra