FixedJoint extremely wobbly

In Unity’s documentation it is said that the way to connect two rigidbodies is by using FixedJoints. However, they are extremely wobbly. What should I do about that? Is there a way to make them less wobbly or should I use s different approach? I need the connected rigidbodies to interact normally meaning to have their center of mass right and if one rigidbody is affect by force the connected ones should be dragged with it as well. I would really appreciate any help.