my ledger nano trx wallet has those coins just asked for is there some value on it
Did you check every tokens in coinmarketcap ? If you can't found it there then there is no way you can sell those tokens. Just stay it there in your wallet and forget that you have those tokens.
Maybe they give that tokens to all TRon holders for free it's the same tokens given in waves there is no value but you continue recieve many shit tokens from unknown developer.