Gardening is a wonderful activity and thanks to the internet, there is a lot of information regarding the same. You really need to know the tools that you will use because a bad workman quarrels with his tools and output.
A good pointed shovel: Whether you invest in a long-handled or short-handled shovel, make sure the shovel is pointed. This shovel shape will make it much easier to turn soil, dig holes, move plants or rocks, and scoop up and spread loose material such as sand, mulch, and compost.
A digging fork: One indispensable tool that every gardener must have is a digging fork. For maximum versatility, look for a fork with four square tines and a foot rest for comfortable digging (not a pitchfork). Digging forks can be used for everything from lifting and dividing perennials to loosening compacted soil and turning compost piles.
Garden shears-pruners: With garden pruners, it’s recommended that you stick with the bypass type rather than the anvil type (anvil-type pruners will crush the stem, while bypass pruners are able to cut it clean). Pruners are essential for trimming plants, removing dead and diseased stems, and cutting back perennials in the fall.
A long hose: One of the most important tools that will make your garden experience much more enjoyable is a nice long hose. If you find a hose that can reach every area of your yard, you can avoid the aggravation of moving hoses and the issue of inconsistent watering. Look for a hose made of rubber (plastic hoses tend to be brittle and can be difficult to work with) and brass couplings (which are much more durable than plastic).
Sourced from: https://enlightenme.com/10-must-have-gardening-tools/
A good tool is one which is maintained well. You cannot be buying new tools every now and then. So once you buy, ensure that the tool is stored or oiled. You should also ensure that you buy the right shape or size.
Tips for Buying and Storing
Try tools on for size. You can’t dig a hole in the aisle at Home Depot, but you should spend time handling tools, mimicking the actions you perform in the garden. If the tool feels too heavy, you risk injury; if the handle is too long or too big, it won’t be comfortable. Look for D-shape handles on short-shafted tools, such as shovels and digging forks: They are easier on the wrists. If you buy online, make sure tools are returnable.
Opt for tools with wood or coated-metal handles. These are strong but not too heavy. Ash and hickory are the most durable woods. Avoid Douglas fir, which is used for lesser-quality tools, and painted handles (paint is often used to disguise inferior wood). The closer and tighter the grain, the stronger the wood. Manufacturers make many confusing claims about quality, but the words “single forged,” “solid socket,” “carbon steel,” “stainless steel,” “tempered,” and “epoxy coated” are all indicators of well-made tools. Tubular-steel and fiber-glass handles, used on professional tools, are generally too heavy and expensive for use by anyone but professional landscapers.