There is no one "best" graph maker. That said, some popular graph makers include:
Each of these has its own strengths and weaknesses. For example, Excel is fairly easy to use but is limited in terms of the types of graphs it can create. Google Sheets is also easy to use but has similar limitations. Tableau is more complex but can create more complex (and beautiful) graphs.
So, the best graph maker depends on your needs. If you need something quick and easy, Excel or Google Sheets may be the way to go. If you need something more complex, Tableau may be a better option.