Turkestan:
Can be formed by numerous nations around Central asia.

Norway-Denmark:
Can be formed by Denmark or Norway.

North Sea Empire:
Can be formed by Denmark, Norway or Britain.

United Caucasus:
Can be formed by the 3 nations in the Caucasus.

Greater Finland:
Finland only.

Peru-Bolivian Confederation:
Peru and Bolivia.

Alpine Confederation:
Upgrades into the South German Confederation and German Confederation.
Can be formed naturally by Austria and Switzerland, if Switzerland unites the German Confederation, they unlock their End Game Formable Nation, the Frankish Confederation. Austria on the other hand will unlock Germania-Hungarian Confederation after they unite both the German Confederation and Austria-Hungary. Germany can integrate RK Greater Hungary to form a Nazi version.

Greater Albania:
Albania only.

Greater Israel:
Israel only.

Austronesia:
Austronesian nations only.

North Africa:
North African nations only.

Sub-Saharan Africa:
Specific Sub-Saharan nations only.

South Africa:
Specific South African nations only.

Africa:
African nations only.

Caribbean:
Caribbean nations only.

South East Asia:
South East Asian nations only.

Abyssinia:
Ethiopia only.

Horn of Africa:
Horn of Africa nations only.

Zapadoslavia:
West Slavic nations only.
Upgrades into Zapadoslav-Lithuania Commonwealth and then the Zapadoslav-Baltic Commonwealth.

Visegrad:
Visegrad countries only.
Upgrades into Visegrad-Lithuania Commonwealth and then the Visegrad-Batlic Commonwealth.

Sino-Soviet Union:
Being reworked into being a different path.

Bulgarian Empire:
Bulgaria only.

Portugal-Brazil:
Portugal and Brazil only.

Mughal Empire:
Pakistan and Afghanistan only. Upgrades into the Greater Mughal Empire.

North American Empire:
Fascist USA only. Not CSA path formable.

United Nigeria:
Niger or Nigeria only.

United Congo:
Zaire or the Congo Republic only.

Celtic Union:
Celtic nations only.

Maghreb:
Maghreb nations only.

Latin Africa:
All 'Congo' nations, Angola, Gabon, E. Guinea, Cameroon, Central Africa and Chad.