The best cocktail shaker is the most foundational piece of any home bar. Because most cocktails are hard to improvise without one. There are two main styles, boston, and cobbler.
Boston shakers are used in professional bartenders. These are iconic and classic. These are metallic and can be fitted with solid seals. Cobbler-style shakers are often used by home bartenders. Because they have a strainer included and are easier to use.
Any type of shaker deciding to get, some factors should consider material, weight, size, and balance. In addition, it is very important to find a shaker with a good solid seal.