1. Radix -> the most scalable but still a work in progress
2. Avalanche -> the second most scalable with faster finality (sub 3 seconds)
3. Near -> good approach to sharding
4. Ethereum -> the most liquid and best tokenomics of all L1
5. eCash -> not yet an L1 but could become one down the road (avalanche, subnets). Would be similar to avalanche but with better tokenomics and security features (PoS + PoW)