Thanks. I'm trying to get a better understanding of these stuff here and how they affect price
https://coinmarketcap.com/Market Cap
Circulating Supply
Volume (24h)
I don't understand what these mean
This is a very good site on cryptocurrencies. All the main currencies are there. You can see the chart showing you the dynamics of price compared to bitcoin or USD. You can also see the total price of the alt you are looking at (the whole market capitalization). Circulating supply is the amount of coins really used by users (the rest remains static as savings of people. And daily volume is how much was traded for the past 24 hours.
Coinmarketcap is the main site I look at but if a coin looks perspective, I read what people on this forum write about it and watch some videos if there are any.