Which wallet should I store my LTC?
Ledger nano s
https://electrum-ltc.org/ and put it on a USB drive for cold storage, or better yet buy a ledger nano S or trezor!
Im a big fan of the Ledger Nano S
Ledger Nano S is a great and similar cold storage option too.
i know litecoin can make it!
If I send LTC from Coinbase to an LTC address, can they see my address when the receive the LTC? Or will they see a different address created by Coinbase?
They will initially see the sending address
It’s easy to follow the trail though using block explorer
Can they use the send address to transfer back to me in the future? Or are send/receive addresses usually different?
Yes, they can SEND to the RECEIVE address and you can then SEND to the RECEIVE address and the currency will go back and forth between 2 people