My conclusion about this article: 

https://research.nansen.ai/articles/a-quick-overview-of-data-availability 

Data availability (DA) is crucial in scaling blockchains and rollup solutions. Celestia, EigenLayer, and Avail are leading platforms in this area, each offering unique advantages.
	•	EigenLayer is actively integrating with major projects like zkSync and Arbitrum. However, its token, EIGEN, has experienced price weakness.
	•	Celestia focuses on cost-effective DA, integrating with various rollup ecosystems, and implementing enhancements such as shorter block times and single-slot finality.  ￼
	•	Avail offers Turbo DA, which accelerates data confirmation, and emphasizes native rollup interoperability through its Nexus framework.  ￼

Despite price declines earlier this year, DA remains a strategic investment for the future growth of Layer 2 solutions. It’s likely that multiple winners will emerge, with value determined by integrations, technical advancements, and network effects.