If you have to ask, the benefits of another init system than systemd starts and stops at "you look smart." I like runit a lot and would even recommend Void Linux as a daily driver if that's your speed, but honestly anyone who actually was around before systemd knew how much sysvinit and co sucked.
This or https://artixlinux.org/ are the only options which come to mind and make some form of sense.
If you are willing to learn more about linux, I think its a good practice to try a distro with a different init system than d. Thats one of the reasons I have void linux on my home laptop.