Is there any way I can report spam token on etherscan or entire ethereum network?

There are many spam tokens in my ethereum wallet which carry no value and I cannot stop anyone sending them towards my address. I tried to search for the same topic on google but people are saying we should report such coin spam but nobody tells who exactly we could report them.
There are also few tokens in my address which says spam on etherscan, which means there much to someway to report spam token to etherscan or ethereum but how?

Also, I have some doubt about the transparency of data shown on etherscan? What do you think how authentic is the etherscan itself? Does it always provide true data on certain tokens? Because many times I have figured out that the data shown on eterscan are different than those on coinmarketcap or other sources.