China, Cuba, Korea, Laos and Vietnam all have DOTP. The others have pro-socialist governments but no DOTP.

China, Cuba, North Korea, Laos and Vietnam: OK, they’re socialist.

Venezuela and Nepal are a strange case where the leftists have the majority of the congress, the supreme court and the executive, but their constitutions still contain capitalist elements and they still have a relevant right-wing legal opposition.

Nicaragua and Bolivia are liberal democracies, but the socialists hold control of most of the government.

I’d place them in three categories:

Unambiguously socialist in the traditional sense and uses a planned economy- Cuba and DPRK

Uses a capitalist mode of production, has a socialist government and constitution- China, Vietnam, Laos

Has a socialist ruling party majority but lacks a socialist constitution, meaning right wing parties still have some influence- Venezuela, Nepal, Bolivia

Nicaragua would fit in third category but I heard they are recently transitioning more towards proper socialism so I will just leave them out for now.