The thing nobody tells you about hand towels is that you'll know within a month which ones were cheap, because they'll already be fraying at the edge while the good ones just get softer. That's the whole test, really. Not how they look on day one hanging over the oven handle, but how they behave on day thirty.
A thin hand towel starts out fine and then goes thin and flat and a little bit sad, and it stops actually drying your hands, it just moves the water around. A good one, heavier cotton, a proper loop weave, gets softer with washing instead of worse, and it keeps its absorbency for years instead of months. Wash them warm, skip the fabric softener because it coats the fibers and that's exactly what kills absorbency, and tumble dry on low if you can, it fluffs the loops back up. When you're buying, check the hem first, a sewn, folded double hem means it won't unravel at the first wash, a single raw edge means it will. Feel the weight in your hand too. If it feels like a napkin, it'll act like one.
On delivery day, check the loops are even and not already pulling, and give it a wash before you use it, new cotton towels need that first rinse to open up and actually absorb anything. Color wise, this is where people get cautious because it's a small item, and I get it, but a small item is exactly where you can be bold without redoing the whole bathroom. A mustard or a deep emerald hand towel against white tile looks intentional, not like a mistake. Where it goes wrong is pairing a loud pattern towel with a loud pattern shower curtain, that's a fight nobody wins, pick one loud thing in the room and let the towel be it or let it be the quiet one. For sizing, a hand towel should be roughly 16 by 28 inches, anything smaller reads more like a guest towel for show, anything bigger starts crowding a small bar. Measure your towel bar or ring before you buy a set, because the classic mistake is buying towels sized for a double bar when you've got a single ring by the sink, and then they hang bunched up and never dry properly between uses, which just breeds mildew smell.
I'd put it next to a bath mat in a close but not matching shade, and a small dish of soap in something with a bit of color too, so the whole sink area feels put together instead of just stocked.