Here are some of mine:

If there is mature content, please put a warning.

To Find a Purpose in Death

Rather than save Rukia, Ichigo dies and becomes a Hollow in the Shattered Shaft. Follow Ichigo's journey as a Hollow in Hueco Mundo with no memories of his previous life. Watch him as he struggles to choose between his loyalty to a man who's goals are unknown and between doing what he believes is the right thing to do. Ichi/Nel.

The Espada's Boy

Alternate version of Bleach. Masaki Kurosaki was a vasto lorde, a fact she kept secret from Isshin. When the time was right she got her subordinate, Grand-Fisher, to fake her and Ichigo's death, and then gave Ichigo to 3rd Espada Nel to make him a Fraccion of hers.