Belarus: I could see CPB taking over when Lukashenko isn’t in charge anymore.
Burkina Faso: Their prime-minister seems to be a communist. Hopefully this means working towards a socialist state.
Cyprus: AKEL is one of the main opposition parties in Cyprus and their candidate for presidency went to the runoff election this year.
Greece: KKE is one of the main opposition parties and they keep growing.
Haiti: There are some revolutionary organisations involved in the protests against the government, maybe they’ll succeed.
Swaziland: The CPS is the main opposition to the king’s rule.
Taiwan: through reunification with PRC.
What others seem likely to you?
EDIT: I remembered South Africa is a candidate as well, the EFF is getting stronger
My understanding is that they have a growing left wing movement. My place of work materially and financially supports Colombian Unions and the developments seem positive.
Not sure if it wil turn out to be ML per se, but I wouldn’t count Colombia out from turning into a left wing stronghold.