are there any other coins that have a halving coming or who just have halvings like ltc and btc?
The only halving I have heard of coming is the LTC and BTC, I don think any other halving is expected again. LTC halving is expected to happen this year while BTC halving is expected to happen next year. The major halving we are all waiting for is the BTC halving as we believe it will contribute as factor to what will make bitcoin surge to the highest vale we have not achieved in the history of bitcoin.
I dont know much about LTC halving because I dont hold it, I am not sure I have seen the effect of its halving before, but let us hope that it will be something that will favor its holder and make their investment have high gain.