There is a LRAS diagram, Phillips curve, SRAS diagram and business cycle. Is there any I'm missing?
It will really help if you mention what level of study this is for. There are people here who have studied econ all the way to PhD level, and there is a myriad of stuff in macroeconomics that we could go into detail on that will be way too much for A Level and GCSE.
Balance of trade
If you look at the AQA specification (https://www.aqa.org.uk/subjects/econ...on-at-a-glance) as an example, you get the following:
Employment, Philips Curve
Fiscal and monetary policy