Join Progressive Labor Party, PLP is the only truly anti-revisionist ML party in the US and growing. PLP has several thousand cadres spread over 20 countries. Mostly in big cities.
PLP is not on revleft though, so it must not exist, lolz! Most comrades I know have never even heard of this forum.
PLP says socialism leads back to capitalism not onward to communism because socialism retains money, borders, privileged groups and wage differentials. After the revolution PLP calls for "communism of a lower order", which will develop into full communism. Establishing communist social relations must be the top priority. All vestiges of Capitalism will be irreversibly smashed. Money will all be shredded and used for mulch.
Kasama Project is the RCP without Bob Avakian, same politics. "Great Leader" politics without the "Great Leader".
The top leaders of PSL are sharp and super committed but their newspaper and on-the-job-work and international work are all weak. They also participate in elections which is politically dubious. There is a strong weed culture in PSL which is fun but not good politically.
Check out
www.plp.org and the PLP wiki on wikipedia.