Graphical representation of reductive powers of NaBH4 and LiAlH4?
This is perhaps more than what you are asking for, but the textbook by Clayden et al.1 has a good overview of reducing agents and their substrates:



Reference

(1) Clayden, J.; Greeves, N.; Warren, S. Organic Chemistry, 2nd ed.; Oxford UP: Oxford, U.K., 2012; p 534.