These ones
https://www.amazon.com/-/es/mec%C3%A1nico-transl%C3%BAcida-extractor-compatible-adecuado/dp/B08C9XYR3L/ref=mp_s_a_1_29?dchild=1&keywords=Pbt+keycaps&qid=1622048084&sr=8-29
https://www.amazon.com/-/es/teclas-teclado-Perfil-gruesas-mec%C3%A1nico/dp/B07PHQFHJ8/ref=mp_s_a_1_30?dchild=1&keywords=Pbt+keycaps&qid=1622048096&sr=8-30
https://www.amazon.com/-/es/Gradient-Keycaps-interruptores-teclado-mec%C3%A1nico/dp/B08HZ6LNMT/ref=mp_s_a_1_46?dchild=1&keywords=Pbt+keycaps&qid=1622048133&sr=8-46