You could look into good soap (Duragloss 902, Megs Gold Class, Shampoo Plus), wheel cleaner(P21s, Sonax), Clay Bar,tire and trim dressing(303 or Ultima), a quality cleaner wax(XMT 360), quick detail spray/waterless wash(Ultima or DP), all-purpose cleaner(Megs APC+), interior dressing(303), a nice selection of brushes (wheels,tire, interior, crevice, etc.) and applicators (round yellow foam, microfiber sponge,tire applicator), and some quality microfiber towels(cobra).
If looking to save some money and put together a good selection stick to multi-purpose products.
303 Aerospace Protectant can be used to dress just about anything.
Meguiars APC+ can clean tires, wheels, wells, doorjams, carpets, leather, vinyl, plastics.
Optimum No-Rinse can be used as a clay lube, quick detail, rinseless wash, water softener.
XMT 360 will be able to get rid of some swirls while leaving behind a protectant on paint.
There are plenty of other products that can be used on multiple parts of the car, if you search the site you will see many of them.