You can try googling "epg xml" and the country you are looking for. You might get lucky. However, whether they will work with your playlist it's a different matter, as TV ID tags need to be the same in the xml and m3u files. For paid options https://xtream-editor.com/ https://www.xmltv.co/ https://www.iptv-epg.com/ are some of the options you can try.
Nothing is for free you will have to pay 😊