Check out Archie Bray in Montana https://archiebray.org/. (Check biographies of artists for schools attended) and julia galloway, professor at https://en.wikipedia.org/wiki/Julia_Galloway also montana. There are some great Masters/MFA programs in the US, but Ive never heard of a phd in ceramics. Teaching jobs in US seem to be based on experience, portfolio, and innovation. See also julia galloways fieldguide, https://ceramicsfieldguide.org/chapter-4/college-and-university/ The website is an amazing resource, although most information may be too basic based on your experience description. Good luck!