Linked from
The 14 pages that link to Canonical quantization, each with the reason it gives.
Julian SchwingerRelated: Schwinger used operator-based quantization to formulate interacting fields.
Lie bracketRelated: It relates classical Poisson brackets to quantum commutators.
Canonical coordinatesRelated: It promotes canonical positions and momenta to quantum operators.
QuantizationRelated: It imposes quantum commutation relations on classical variables.
Scalar field theoryRelated: It provides one route from a classical scalar field to a quantum field.