Are there any specific concerns you are trying to treat? Given that you are combo skin, you probably experience both oiliness and dryness. You can try the Drunk Elephant Hydra Serum: https://www.gofriendshop.com/products/drunk-elephant-b-hydra-intensive-hydration-serum32 for hydration. It has hyaluronic acid which is a super hydrator, great for those try patches. For the oily zones, take a look at glycolic acid -- it's a powerhouse ingredient to control oils and breakouts because it helps reduce excessive oils. This Glycolic Acid solution by the ordinary is very affordable: https://www.gofriendshop.com/products/the-ordinary-glycolic-acid-7-percent-toning-solution-7ae82b85-ee4f-4bdb-a2fd-8b808e0105da33
Hope this helps!