Hi Animator, check this free plugin for After Effects, “Thicc Stroke“, variable-width stroke plugin for Adobe After Effects.
How to animate stroke in After Effects?
Thicc Stroke is a plug-in to set-up variable width of curves, with the possibility of managing the gradients along the whole shape, an excellent and powerful tool for motion designers not to be missed, plugin for AE CS6 and later versions!
Works on masks and shapes
Infinite width control points using feather vertex tool
Butt / Round cap styles
2,3,4 color gradients with loopable colors
Full trim path controls
Trim paths optionally influences width and/or color
Thicc Stroke – Free Variable Width Stroke Plugin for After Effects