The first 10 coins on the coinmarketcap are the best coins that you can invest and make really good money in years come. Bitcoin, ethereum, ripple, zcash, dash, litecoin and some many other that has good capitalization are some of the coins you can actually invest and make good money.
yes, you're right, coinmarketcap.com can be a reference for choosing what crypto is worth for investing because we can find the info about each crypto, such as volume, market cap, price movements, etc.