Sewing Up Corpses: Step Away from That Body and Let Me Handle It

Villain Stories About Refining Corpses and Raising Ghosts, Preferably With Lots of Both and a Slow Pace

I want to read books like The Villainous Heretic: Refining Corpses and Raising Ghosts Isn't Going Too Far, Is It?

Any Novels About the Eight Crafts of the Yin Sect?

Corpse drivers, corpse stitchers, paper effigy makers, and human artisans. I don't know the other four crafts.

Ancient Trades Like Beheading, Cremating Corpses, and Sewing Bodies, With Rewards for the Work

The Protagonist Can Absorb Energy From Corpses

The protagonist can absorb energy from corpses. Early on, he gains control over a rabbit and a vine. It's a magical world.