Beginners:

World Economic Forum (Chocolate production; Modern slavery);

African Union (Safety in the Horn of Africa; Wildlife trafficking)

Intermediate:

EU Committee (Transnational drug trade; Female political leadership);

Permanent Forum on Indigenous Issues (Preserving Indigenous Languages; States vs Tribal rights);

NATO (Tensions with North Korea; Maritime security)

Advanced:

BRICS Committee (creating a BRICS-wide cryptocurrency; a climate change approach led by emerging economies);

Interplanetary Forum (Cyborg rights; Writing a code of ethics to protect endangered alien species and non-space-faring species)

Crisis:

Historical US Presidential Forum (Ending World War II; Making America Great Again)

Prison Break: Prisoners vs Police (joint cabinet crisis)