Recently I created a package named conolist for linux and any system that has a CLI. This package solves a boring problem for terminal geeks, it can help you surf the paths and do some actions on them just in terminal and no writing stuff.
I need help to introduce this package and collect people to use it.
Upload your package to Debian (howto).
This gets your package into the Debian Archive and into the Ubuntu Repositories, so it shows up in Ubuntu Software and can be installed by apt. It takes time and patience, but there is a real feeling of accomplishment when YOUR package shows up in a release of Ubuntu.
Some folks will download software from a random github site... but many more won't.
The easiest way to get this available to Ubuntu (and other Linux) users is as a snap. As it's python you could follow the https://snapcraft.io/first-snap#python guide for turning a python application into a snap. Once built and published in the store, anyone running a supported version of Ubuntu can install it via snap install conolist (or whatever you call it).
The https://askubuntu.com/questions/16446/how-to-get-my-software-into-ubuntu linked in the comments is a little dated, and doesn't cater to making snaps, which is why I've answered it separately here.
I think you are asking more how to get people interested in your package. I would contact sites like omgubuntu.co.uk and others to test your package and tell Linux users if it is good. These sites usually review programs/apps often and people read them.
apt install. – WinEunuuchs2Unix Jul 08 '20 at 17:20