Think deadlifts are the way to go? What about sparing the spine by using a hex bar or dumbbells by the hips? Shorter moment arm to the lumbar spine.
Stuart McGill has something to say about deadlifts.
Old time techniques may get your across the finish line faster for longer.
https://youtu.be/tM599A6wUAw?si=8yNvMXKSO7pzT8jL