If you have a drone, it will be very good if you know of a motor that will make it work. One type of motor that is commonly used is a brushless motor. You can get it on a BLDC motor if yours is suddenly damaged. Because there are many options that you can choose and use.
Then, where to start to decide which motor is good for your drones? Knowing your multirotor weight is the first thing you need to know. When we are assembling, or planning to build the next drone, knowing its exact weight can be difficult.
You can also start and select and change your components that will slowly improve the weight of your drone estimates. we start the first by knowing what frame to use because the frame gives some maximum size restriction of the motor or propeller. most also the frame we buy will recommend what motor we should use as picture/reference.