You can list it on some decentralized exchange if it is a token, ERC-20, TRC-20, BEP-20 tokens could be normally added to DEX even the team didn´t pay for listing on a centralized exchange. Try IDEX, TronTrade.

Yeah, good suggestion that's can be possible easily but what kind of benefit he will get to list dead project. Definitely centralized exchange will take listing fee (depend on liquidity) if known exchange. Without fee you can add in new launched shit exchanges.