Here is a basic overview of the main kratom strains out there:
Red Kratom Strains
While the red strains of Kratom may have very mild stimulating effects, they are known for one main thing: pain relief. Many people compare them to opioids.
These are really great at the same time for reducing anxiety.
Green is somewhere in the middle between red and white. It has the ability to relieve some pain but also can help focus.
Not as pain-relieving as the others, white is dedicated mainly to stimulating effects and increasing focus and concentration. This strain can definitely cause a lot of insomnia.