Exceptional information can be found by studying to material from the following individuals or websites:
Listed in no particular order
CoinGecko for checking price and market cap.
Noteable individuals in the crypto-spcace who have helped me learn are mostly 'YouTubers', such as CryptoDad, CryptoZombie and ChicoCrypto to name a few.
Mining Pool Stats is great for checking statistics of various mining pools.
You can use What To Mine, to determine the profitability of one's CPU/GPU mingin performance capabilities.