I'm taking AQA A Level Business at the moment, using Quizlet to know my models and theories - some are good, some aren't so good, many of them miss out a lot of models and theories / concepts.
Here's one I made myself - some of the photos have the names at the top or around them but I did my best I could do with a free account. The more you look at them and being active about the revision, the better you'll remember them. If this one doesn't work for you, there are many others on Quizlet with different teaching styles too - flashcards, etc. https://quizlet.com/291864056/business-a-level-aqa-models-theories-and-concepts-flash-cards/
Be aware that the list of models and theories provided from AQA isn't complete! Ansoff's matrix, PED, Critical Path Analysis and others are missed out. In the Quizlet I've created above, almost every model/theory/concept is on there so even if you don't use it for the test mode features, you can be sure that that's an almost complete list. I have, however, missed out some of the formulae as some are simply common sense (e.g. Profit, etc.).
For me, I'm pretty competent on the knowledge; it's just a matter of practice, practice, practice. The quicker you can start to process the information, the quicker you'll be able to manage the question and get all the important points down - REMEMBER the evaluation/conclusion is worth 1/3rd of the marks for 16/20/24/25 markers!