See Quantum Mechanics for Scientists and Engineers by David Miller.

Problem 15.1.1 demo
Problem 15.1.2 demo
Problem 15.5.1 demo
Problem 15.6.1 demo Coherent state
Problem 15.6.2
Problem 15.6.3 Commutator trick in part (ii)
Problem 15.7.1 demo

Problem 16.1.1 demo Fermion creation and annihilation operators in matrix form
Problem 16.2.1