If you want a legal “free” taste, (Kodansha) and Magapoke often offer the first few pages of a new chapter for free. While not the full chapter, this allows you to see the art and key dialogue snippets. Use a VPN set to Japan if needed.
While the allure of "free" is strong, it is always recommended to support the official release when it becomes available to ensure the artist can continue drawing this incredible path. However, for the impatient, the raw sites provide that essential fix. manga oukoku e tsuzuku michi manga raw chapter 97 free