MACHIN3tools is a continuously evolving collection of blender tools and pie menus in a single customizable package.

https://blendermarket.com/products/machin3tools

ToOptimize Tools

ToOptmize Tools is an addon for Blender that will help you optimize your scene in a simple way with very useful tools. The addon will show you what is making your scene heavier, comparing each object, collection, texture, and material in your scene!

https://blendermarket.com/products/tooptimize-tools

Launch Control // Auto Car Rig

LC (Launch Control) strives to make vehicle animation accessible and eliminates the usual problems you stumble over, when turning your action-sequence dreams into reality (a virtual reality, that is).
The simple interface packs a ton of power and in the "Manual Gearbox" you have a world of customization options to tune LC to your liking.

URL: https://blendermarket.com/products/launch-control--auto-rig-for-vehicles

Ocd (One Click Damage)

Turn simple into stunning with 'One Click Damage'.
This ultimate tool adds realistic wear with just a click. Choose your model, adjust, and instantly enjoy a highly detailed, lifelike asset.

https://blendermarket.com/products/ocd

Retopo Planes

Retopo clothes without losing details or breaking a sweat!

https://blendermarket.com/products/retopo-planes

Fluid Painter

Imagine effortlessly painting fluids over any surface in your 3D designs. No more tedious workarounds or clunky interfaces – just pure, seamless creativity. That's the power of the Fluid Painter Add-on for Blender. As a 3D artist myself, I was frustrated by the limitations of existing methods. That's why I set out to create a product that would make it easier to work with fluids in 3D design. I tested it myself, and with the help of other 3D professionals, to ensure it was easy to use, flexible, and powerful. And now, I'm excited to share it with you. With Fluid Painter, you'll be able to turn your vision into reality and take your designs to the next level. So go ahead, unleash your creativity and make a splash with Fluid Painter!

https://blendermarket.com/products/fluid-painter

Want to see more addons?

Donations motivate me to find more stuff and also let me buy something that is not available anywhere to share with you. Any amount will do!

CURVEmachine
CURVEmachine can be seen as MESHmachine's little brother. It aims to make POLY Curve editing more flexible, and like MM's fillet toolset, makes working with curve radii/arcs and non-circular blends essentially non-destructive.

https://blendermarket.com/products/curvemachine