Try http://xmltv.co
It is not free but $5 per year is cheap!

You can make your own with webgrab+ it's very easy but a time consuming task.

webgrab++ if you want to do it yourself

Xstream Editor if you want a full package of EPG/Logos/Channel editing

Does your provider not provide you one?

for epg check this tutorial https://friendiptv.com/how-to-get-ipg.php

use IPTV smarters app xtream api mode and you ll see if your provider have epg or not .