As of June 20th, 2021, Pulse (Pulsechain) as not yet launched. You cannot buy, trade, sell etc any Pulse coins. Don’t fall for any telegram channels or pages offering an ICO for Pulsechain. There is no Nomics, Coingecko, or Coinmarketcap page for Pulse chain. As soon as Pulsechain goes live and the pulse chain sacrifice phase is over (30 days), the links to the real PULSE coin will be listed here as they become available. Stay tuned!
(or you can follow the pulse chain founder Richard Heart on Twitter to stay up to date as well)