This question gets asked a lot, try searching for 'thin sides' etc. Basically the options are keep getting tight fades, apply makeup (can be hairloss concealers like toppik and dermmatch, bigen, ultra thin eyebrow feathering pens to draw little hairs), tattooing (SMP) or wear a full cap. If you don't want to be limited by having to get fades, try something else.
I grow mine out makes the look a lot better and easy to blend, some pieces i see with shaved sides just look odd to me especially if its high density. I have seen a few that look good, usually the piece cut short with lower density.
