There's nothing we can do about the dead coins. I have about 50 shitcoins in my collection of dead coins. I've had a horrible experience with it. There is no way to sell a dead coin because there is no demand. I'm going to disregard these shitcoins.
Ignoring is a better thing, it's hard for a dead coin or project to wake up again, if it's been a year a project has not been updated on various social media then it's better to sell at any price than to be a dead coin, I regret losing more than $2500 of 20 coins and tokens which are now dead.