These are only simple setups. If you search online, you can find more complex setups available. Nevertheless, for a beginner or someone on a tight budget, these are excellent choices.
*CLICK THE PHOTOS FOR LINKS*
You want to ensure the bunnies always have enrichment and fun things to chew on to avoid them being board/destructive.
Now this one is ALL dependent on your bunny, as well as you.
Some bunnies like timothy hay over orchard grass, and vice versa. Some humans do have an allergy to the higher dust content in Timothy Hay, so if you do feel the sniffles or allergies, it may be from the timothy hay dust.
For a more budget friendly option, Oxbow is a great option.
For kibble, you want to ensure to get a kibble that is timothy pellets ONLY. You do not want to get any kibble that has seeds (can cause digestive damage), yogurt drops, or any treats. Many of those types of kibbles just add weight to your bunny, and are pure sugar treats that do not help the bunny nutrition long term.
The Budget Friendly Brand that I love is Modesto Feed Mill, this you can get at local stores such as Hacienda Hay & Feed, Stones Pet Shop, or Raw Connection/Healthy Spot. Many others have it as well.
Another great option is Oxbow adult pellets for bunnies over the age of 6 months.
For higher end bunny food, I highly recommend Sherwood Pet Health. Their kibble is rich in nutrients.
*REMINDER: Your bunny only needs about ¼ cup of kibble per day.