Splurge on that custom wall unit
Custom units can be expensive to buy and have installed, but if you have the budget, it's definitely worth the investment. Use this opportunity to design your custom closet to look how exactly how you want. This includes the number of shelves, where they're located in the mix, and the total dimensions of the closet. Choose to cover your whole wall, make a nook, or just get one rod and shelf installed. Look to Ikea for affordable options.