Get a waterproof sleeping bag and bury the person head first feet up. Pull out the teeth, clip off the finger tips and toes and put them in a 2lt bottle of coke and stick it at the bottom with the head. As the body decomposes the liquids of delicious human goo will condense at the bottom of the bag(in the head, making facial recognition impossible without computer reconstruction) and the coke will degrade the finger tips/toes and teeth making identity by finger prints and dental records impossible. After a while the bottle of coke will explode from pressure built up by the fluids from the body parts and further degrade the body because of liquidation, even the bones will eventually get warped because of the coke. Nothing will leak out because you're using a waterproof sleeping bag and after a few weeks of decomp the entire body will be a gooey pile of human goo at the bottom of a small sleeping bag and as this all happens the dirt will slowly sink making the hole look natural because it will remove any marks that it was dug.

https://old.reddit.com/r/copypasta/comments/mimpsz/how_to_hide_a_body/?sort=controversial

find an alligator infested pond and throw it in or make chop up the body, cook the meat and then feed it too wild hungry animals or...dumb the body in a public area before the area becomes public and let local authorities get rid of it but expect investigations and cameras... last but not least you can get rid of a body by finding a waterfull and dump it there or you can tie chains around the body and have weights added to them and just let the body sink in deep deep waters, accept Jesus christ into your heart

Dig an 8ft deep hole place body standing up then plant endangered plants all over the area

knowing someone who owns a crematorium.

the body is the girl your talking about in the bio right ?

Don't hide it, get rid of it:)