Notional Labs provides validator bootstrapping services for testnets in Cosmos. This is a service we have done for several projects, one of whom was Sei Network. Sei styles itself as a decentralized NASDAQ, allowing projects that build on its chain to benefit from a nativce order matching engine, frontrunning protection, and multiple levels of order bundling. The chain also runs at the fastest finality in the Cosmos ecosystem at up to 600ms.