What is Helium Validators ? 

Validator nodes are a new entity on the Helium Blockchain that will perform the work of the consensus group including verifying transactions, and adding new blocks to the blockchain.

Learn more about how to Stake your HNT as a Validator here

Want to run the Testnet for Validators ?  Read the docs here 

Check out the Live Validators on Testnet here 

Get involved with the Helium Community discussion on HIP-25-Validators channel on Discord

Want to Stake your HNT with a Staking service ?  Here are some options below