Tarlz seems similar to Afio https://github.com/kholtman/afio

Afio makes cpio-format archives. It deals somewhat gracefully with input data corruption. Supports multi-volume archives during interactive operation. Afio can make compressed archives that are much safer than compressed tar or cpio archives. Afio is best used as an `archive engine' in a backup script.

I've been using for some backups and it has worked fine. And for backups, I prefer to use cpio than tar.

Looks interesting, particularly the --threads option. Unfortunately for me, it appears to only use one core for compression. As imperfect as it is, I'll be sticking to 7zip for now, which does use all 48 cores.