Create a trail effect (Meteor) I am trying to show a sphere with a trail, like the one shown in the image. I have tried using keyframes and moving the object from one point to another, and then enabling motion blur. This is not giving the desired effect. Any advice on how to achieve enter image description here this effect?
With current experimental build 2.91 you can base this on Volume Object.

create the shape from a Mesh Object.
add Volume Object and in modifiers choose Mesh to Volume, as source Object choose created shape one
add Point Light object in trail direction (close to a sphere)




With second modifier Volume Displace you can use texture to distort. Here is a few examples of Cloud texture (variations in texture properties level).


Since I don't see an option to animate Texture position (for now) for Volume Displace modifier, here is a basic node material ...



With additional Curve modifier (for mesh Trail) or Wiggle bones you would be able to animate motion in more natural way (like a flame moved from one place to another).