If you need a reliable and extremely high-quality tool, then of course you should look in the direction of KNIPEX 71 72 610. It has 62 HRC cutting edge hardness and able to cut metal rod up to 48 HRC and diameter up to 3/8 inch. Of the minuses-twice the higher price compared to the closest analogues of other brands.
If the price is more important, then try WorkPro W017006A or Maxilla FB-24 Folding Bolt Cutter. At a cost within $50, they have good tech specs.
If you are interested in the minimum weight and compactness — the best choice will be Fuller Tool Pro Series 18-Inch. It weight only 3.45 pounds. While analogues weigh between 5 and 9 pounds.
There are of course other good bolt cutters, which you can read in detail in this review https://toolslaboratory.com/best-bolt-cutter-buyers-guide-2019/