You can't really find a mod/cheat for content that's not officially released yet. And either way, "cheating" in Valheim is about as pointless as "Cheating" in Minecraft. The premise of these Build/Survival games is so simple, you seriously CAN'T lose.
Sure, you can die, but its not permanent, and you resurrect at your bed.
Sure, you drop your stuff when you die, but you can get it back. It doesn't de-spawn.
Sure, you may have to rebuild some things, but resources are everywhere.
If you can't enjoy the game for its challenge, design, and overall experience without having to cheat to make it an easy, boring sandbox, then maybe its not the game that "sucks donkey honks"?

As I love to quote Ron White on subjects like this;

Originally posted by Ron White, 2006:

And I mentioned there was 40,000 men stationed at Fort Polk, its a huge base. And this really well dressed...drunk lady, hollers out; "Every one of 'em's a bad ♥♥♥♥!"

"Its like...boy, y'know, it seems like, after about 39,000-times, you'd start to go...maybe it's me?"