Do you want an actual answer?

MKUltra was shutdown long ago, but several fragmented research continued and still lives on. MKNAOMI, MKDELTA, MKSEARCH were immediate successors. Later, ruwre was StarGate. And many many more undisclosed human experimentation.

Intelligence community behavioural science seems to be one such project, where they teach interrogating resistance, psychological profiling of adversaries, influence and propaganda analysis (not direct brain control).

While modern variants don’t have any official names or are even disclosed, its safe to assume they still are conducting human experimentation. Just much better and much less fan fare.