There are a number of tools that I use in my Photography and Video Workflows; I will list and talk about them here.
This is a non-destructive editor that is a good replacement to Lightroom and Photoshop if you are tired of paying for a subscriptions.
Skylum has a number of free looks, as well as affodable ones in the store.
Lynda.com and Youtube have a number of courses to aid in learning.
This is a quick, down and dirty tool for stacking bracketed pictures for that cool HDR effect; like Luminar there are a number of looks that are easily applied and modified.
Stock Sites (Video, Audio or Photo)