Polygon ($POL ):

The project: Polygon is considered the leading Layer 2 solution for scaling the Ethereum network, enabling faster and cheaper transactions. It has strong partnerships with global companies and plays a pivotal role in the growth of decentralized finance (DeFi) applications and gaming on Ethereum.

Why it is strong: With the ongoing need for scalability solutions for the Ethereum network, the MATIC project has real and sustained demand.

On Chain (VeChain - $VET ):

Project: VeChain focuses on supply chain management and logistics using blockchain technology. It has partnerships with large companies in sectors like pharmaceuticals and luxury goods, giving it real and direct applications.

Why it's strong: The need for transparency and tracking in global supply chains is increasing, and the VET project offers a practical and proven solution to this problem.

Cardano (Cardano - $ADA ):

Project: Cardano is characterized by its research-based approach and peer-reviewed development of a secure, sustainable, and scalable blockchain platform. It focuses on smart contracts and decentralized applications and is working on major upgrades like 'Hydra' to enhance performance.

Why it's strong: While its development pace may be slower than competitors, its meticulous approach aims to build a strong and long-term network, making it a solid choice for long-term investors.

These three coins have relatively medium to low market cap projects compared to Bitcoin and Ethereum, but they have strong technological foundations and real use cases.