Too Long; Didn't Read
‘Ethereum killers’ are largely a media narrative - with Solana, Polygon, and Harmony as the only outperformers. Solana outperforms Ethereum in transaction numbers but has a far lower TVL. Others include Algorand, Near, Elrond, Internet Computer, IOTA, Harmony, etc. They all offer solutions to the same Ethereum problems: low processing capacity, limited scalability, high fees, and high fees. None of the L1 blockchains calls itself an 'Ethereum killer'