The best replacement for singleton is static.

The best alternatives to singleton are rated as following:

★★★★★	static
★★	static class
★★	static class java
★★	static methods
★★	factory
★	static java
★	twins
★	static c#
★	dependency injection
★	global variable
★	prototype
★	static class c#
★	class methods
★	unit set
★	monostate
	prototype spring
	static class c
	singlecall
	singleton
	static php
	static classes
	namespace
	static methods java
	transient
	twin pregnancy
	single call
	static class c++
	applicationscoped
	waterhouse

Your alternative for singleton is not listed? Suggest!

Speaking about singleton, one probably shouldn't forget about private constructor.

Other search terms related to singleton and their ratings are:

★★★★★	private constructor
★★★	factory
★★★	private constructor in java
★	instance
★	volatile
	high hcg
	factory pattern

You have in mind a companion for singleton and it is not yet here? Propose!

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singleton

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static class