Yes there are plenty types of weed out there..
But what is the best weed??
Questions: What is the best weed out there?
What weed has the most potency (contains most THC)?
That is a question that I would expect a 13 or 14-year old to ask.
The best weed is the strain or strains that give you the type of high or stone or combination of each that you most enjoy .... regardless of percentage of THC.
THC level alone does not create quality and a strain having the highest percentage of THC does not make that strain the best for everyone, and possibly not even for anyone.
What makes a high or a stone is the ratio of various cannabinoids and terpenoids to each other. It is like a recipe. If there is not the proper amount of something or various things, either to much or two little, what you get will not be good, you will not like it, it will not be the best.
I have gotten higher off of and enjoyed more some strains with a THC percentage in the 12 to 15 percent range than some that have been in the 18 to 20 percent range. The reason was because of a better ratio of cannabinoids and terpenoids in the 12 to 15 percent range strains than the 18 to 20 percent range.