Cookies are honestly some of my favorite baked goods, they're so good!
Cookies are some of the best and classic baked goods
Agreed! What are some of the more popular and common types?
Ingredients like raisins and chocolate chips are classic
Raisins are classic? Most people seem to hate them! 
They are very common similar to chocolate chips and oats as well
That's fair, it seems like chocolate chip, raisins, and oatmeal are really common in most places that sell cookies.
They are called biscuits if they are crispy in other countries outside of US and canada
I've noticed that, since I've been to England before and biscuits are often chocolate covered "cookies".
If they are chewier they are still called cookies