Create your own (or use an existing) product and brand. Then, explain:

- What is your product/s and how is it valuable (it's competitive advantage)

- Define your target market.

- Explain how you would develop your brand image.

- And how you're going to market your product/s (platforms/online/physical stores/direct marketing/etc)

you can also use (if you'd like but not necessary) a SWOT analysis, Porters 5 forces, PESTLE,