Look into Bitcoin uses market cycles, on-chain analysis to provide real-time charts and other information, giving Bitcoin investors a clearer understanding of the overall ecosystem. This is one of my personal favorites. Look Into Bitcoin provides a large number of charts about Bitcoin. The site has a very clean interface, with detailed instructions on how to read and interpret the data under each graph. All dates are free and no login required. Some of my favorite tools on this site include MVRV-Z Score, HODL Waves, and Net Unrealized Profit/Loss (NUPL).