I use Figma to design Framer templates, websites and dashboards. Over the years I have used many plugins. Here is a list of my most favorite Figma plugins.
Unblocked AI

Unblocked is a Figma AI plugin for editing images without leaving Figma. Use AI-powered tools to enhance your visuals—no login or registration required.
BlendingMe

BlendingMe is the tool for blending two lines, ellipses or rectangles. It's extremely easy to use: select the two objects you want to blend, determine the number of steps and click Create Blend.
Content Reel

Design layouts more efficiently by pulling text strings, images, and icons from one palette.
Remove BG

A super handy Figma plugin to quickly remove backgrounds. Only sidenote: you do need an account on remove.bg.
html.to.design

Convert any website into fully editable Figma designs.
Styler

Styler offers the possibility to manage multiple styles at the same time by changing the layer properties. It is possible to create, delete, rename, update styles or move them from one file to another by unzipping them.
Unsplash

Most designers will be familiar with Unsplash by now. This handy plugin lets you choose from more than 3 million images, directly into your designs. And the great thing is that the images are free to use for both personal use and commercial use.