It depends on your skin type and skin sensitivity level. What works good for one person may not be the best hair removal treatment for another person.
It also depends on how much hair needs to be removed. For dense hair waxing or depilatory creams might work better than tweezing or threading techniques.
If you don't have too much hair that needs to be removed, threading and tweezing might be more beneficial because you can target each area with precision.
Also, lasers work good for people with lighter skin; but should not be used by people with darker skin. This is because the light can bleach the skin; therefore, if someone with darker skin wants to use a laser for hair removal, they need to make sure whether it is designed to be used by people with darker skin.