https://github.com/ Place to get plugins for blender.
Create your own objects or Buy or get objects
Go here for lists of plugins in blender.
GitHub - agmmnn/awesome-blender: 🪐 A curated list of awesome Blender addons, tools, tutorials; and 3D resources for everyone. For tons of great plugins
How to use these plugins and reviews by Youtubers
Plugins that are preinstalled with Blender that should be turned on.
Blender is a powerful program and if you don't have a fast enough rig, you won't be able to do the things you really want to. Forget about simulations, or large scenes.
Get 32gigs of ram or more, (ddr5 ram just dropped in price), Get a VideoCard with 12gb of vram or more, get a large M.2 drive, and an 8 to 16core Processor.