$ grep -r ^deb /etc/apt/ --include="*.list"

/etc/apt/sources.list.d/vscode.list:deb [arch=amd64] http://packages.microsoft.com/repos/vscode stable main
/etc/apt/sources.list.d/nordvpn.list:deb https://repo.nordvpn.com/deb/nordvpn/debian stable main
/etc/apt/sources.list.d/team-xbmc-ubuntu-ppa-eoan.list:deb http://ppa.launchpad.net/team-xbmc/ppa/ubuntu eoan main
/etc/apt/sources.list.d/thopiekar-ubuntu-cura-eoan.list:deb http://ppa.launchpad.net/thopiekar/cura/ubuntu eoan main
/etc/apt/sources.list.d/spotify.list:deb http://repository.spotify.com stable non-free
/etc/apt/sources.list.d/papirus-ubuntu-papirus-eoan.list:deb http://ppa.launchpad.net/papirus/papirus/ubuntu eoan main
/etc/apt/sources.list.d/slack.list:deb https://packagecloud.io/slacktechnologies/slack/debian/ jessie main
/etc/apt/sources.list.d/google-chrome.list:deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ eoan main restricted
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ eoan-updates main restricted
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ eoan universe
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ eoan-updates universe
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ eoan multiverse
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ eoan-updates multiverse
/etc/apt/sources.list:deb http://de.archive.ubuntu.com/ubuntu/ eoan-backports main restricted universe multiverse
/etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu eoan-security main restricted
/etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu eoan-security universe
/etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu eoan-security multiverse
/etc/apt/sources.list:deb https://dl.winehq.org/wine-builds/ubuntu/ eoan main