paru - An AUR helper written in Rust and based on the design of yay. It aims to be your standard pacman wrapping AUR helper with minimal interaction.
Conda - Binary package manager with support for environments.
pikaur - AUR helper with minimal dependencies. Review PKGBUILDs all in once, next build them all without user interaction.Inspired by pacaur, yaourt and yay.
pkgsrc - pkgsrc is a framework for building over 17,000 open source software packages.
Trizen - Trizen AUR Package Manager: A lightweight wrapper for AUR.
Portage - Portage is source-based package manager used by Gentoo and its descendants. It controls all process from fetching source through building it, installing into clean environment to "merging" with already installed software.