Type, kind and sort all have the same meaning and can be used in the same situations:
What type of car do you drive?
An interesting kind of plant.
A new sort of mobile phone.
If you are saying that something is partly true or are not being exact, use sort of or kind of rather than type of:
It's a sort of oval shape.
Type, kind and sort are countable nouns, and they must be plural after determiners with plural meanings:
a) this type / kind / sort of + singular noun
I don't like this type of thing.
This kind of mistake is easy to make.
Red wine goes well with this sort of dish.
b) these types / kinds / sorts of + plural / singular noun
How common are these types of illness(es)?
Those kinds of colors look good with dark skin.
Remember to use the plural types / kinds / sorts after all / both / certain / different / many / several / various, among others:
Movies that appeal to certain kinds of people. (NOT certain kind of people)
Many sorts of jobs require computing skills (NOT many sort of jobs)
Wanna Ice Cream? Which Type... Kind... Sort
