LEAF is a 501(c)(3) non-profit organization dedicated to promoting increased healthy human lifespan through fiscally sponsoring longevity research projects, and raising awareness regarding the societal benefits of life extension.
Rejuvenation projects include treatments for genomic instability, telemere attrition, epigenetic alteration, loss of proteostasis, deregulated nutrient sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, altered intercellular communication, and long-lived protein modification.
Here's their rejuvenation roadmap:
https://www.lifespan.io/the-rejuvenation-roadmap/