Reddit mentions of Cocktail Kingdom Koriko Large Weighted Shaking Tin

Are you just bartending casually at home or are you looking to do it as a job in the future?

Jefferey Morgenthaler's book is great:https://www.amazon.com/Bar-Book-Elements-Cocktail-Technique/dp/145211384X

You'll want to get a jigger, I recommend oxo's graduated jigger, a barspoon, a mixing glass, a strainer, a set of shaker tins (get a small and a large, and seriously splurge for koriko not the other bullshit)

Those are all of the essentials, beyond that everything is fairly unnecessary but there are tons of other things you can buy. I guess a vegetable peeler could be handy for peels but you can just use a sharp paring knife for zest garnishes.

For glassware you can spend as much or as little as you want, depending on how much you care about appearance. When I first starting making drinks at home I had glasses for every variety of drink. I still have those glasses, but basically use these for everything, regardless if it's shaken stirred or whatever. Gimlets taste delicious out of them, manhattans taste delicious out of them.

One little handy thing I've found is these seagram's bottles. Buy a 6 pk of the little glass club soda bottles. Once you use the soda, rinse them out and they're perfect for storing syrups, juices, etc. Plastic caps won't deteriorate like metal will in other styles of bottlees. They're short so they fit in weird parts of your fridge, hold enough syrup for plenty of drinks, etc etc.