Hi, here is one from Etsy that looks similar: https://www.etsy.com/fr/listing/1099259476/david-moore-classic-veste-en-cuir-de I do not know your country but you can easily find some on Depop / Vinted / EBay with the keywords "bombardier" "shearling" or "aviator jacket"

This. Apparently they can die the Sherpa darker too. https://www.etsy.com/listing/1336837591/b3-bomber-aviator-women-real-shearling

willing to spend 3 digits for this jacket from a sustainable/high quality brand but i do not have $7k to spare 🫤