Cookie cutters split into two real categories: cheap tin sets for seasonal novelty shapes, and heavier stainless steel cutters that hold a crisp edge through years of dough. Buy cheap for shapes you'll use twice a year, buy stainless for the rounds and fluted edges you'll reach for every week.
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Wilton
The set most people already picture when they think 'cookie cutters.' Thin tin construction cuts cleanly through rolled dough but bends if you press hard or store it loose in a drawer with heavier tools. Fine for occasional holiday baking, not built for daily use.
Ateco
Restaurant-grade tinned steel in graduated sizes with both plain and fluted edges, the set most serious bakers reach for on cutout cookies and biscuits. It only does circles, you still need a shape set for anything else.
Ann Clark
US-made tin-plated steel that holds a sharper edge than mass-market sets, sold in an enormous range of individual shapes, useful if you decorate for specific themes rather than buying a generic assortment. Individual cutters add up in price fast if you need many shapes.
Fox Run
Just the fundamentals, round, star, heart, and similar basics in tin-plated steel. It is a genuinely budget set, the edges are thin and can dent, but for the handful of everyday shapes most bakers actually reuse it does the job.
R&M International
A long-running budget brand with a huge catalog of individual novelty and holiday shapes, useful for filling a gap a bigger set does not cover. Quality is inconsistent piece to piece, this is a shape-hunting brand, not a daily-driver set.