As a lover and daily users of the htop process viewer, a really neat complimentary tool is called bottom, a customizable cross-platform graphical process/system monitor for the terminal written in Rust.
In the never ending quest to provide Funtoo users alternatives but also more useful tools, this is a request to add bottom as a autogen using the Funtoo metatools latest packaging standards.
Official GitHub Repo for the active project: https://github.com/ClementTsang/bottom