CoinmarketCap would need 2 Exchanges which trade LTZ, CrateX and Zapple are not yet listed cause they have not yet done so.
We have to wait for CrateX and Zapple been accepted by CMC and meanwhile we Work and build further on LTZ.
Two exchanges, at least, required by CMC.
In addition, those two exchanges have to had significant volume to get accepted.
Then, those two components, when verified, will help Litecoin Z appear on CMC.
you can look at the last places of the full Exchange list and see that the significant volume is more a guideline , or you can use Coinpaprika, crpto.space ,Delta etc.