Coinmarketcap is generally the fastest one to link new coins. Though there are some paid to list reference sites but non has as extensive and overall reference as coinmarketcap. Many other site uses CMC.
The next place you look for is the announcement page of particular coin you are looking for.
CMC is a bit different right now. As far as i can see about that the chart looks pretty ridiculous. i guess i have seen the chart was around 2 percent and this time it has been growing a lot. CMC is being manipulated,. The chart has been growing a lot without any increase on the crypto price. That's really strange.