Here are some online resources to guide you:

Monash University offers sample essays on a wide variety of academic subjects.

JSTOR is an online library of scholarly journals in various fields. If you're a university student, check with the dean's office: you may be entitled to free access to this library.

Questia is another aggregator of scholarly publications which costs only $1 for the first month. It is ideal for those who simply want to read a variety of scholarly texts in a small amount of time.

To find free scholarly journals, use the Directory of Open Access Journals, where you can find free access publications on a variety of scholarly subjects.

Many of the publications you'll find on all of these resources are high-level research papers, so don't worry if you don't understand them! Student papers will be much easier and easier to understand. What you should be interested in is the format and style of writing

Most writing services offer free samples as well. Discussions, dissertations, reports, research papers, you name it. You might get interested in ordering one by yourself while browsing it, but don’t get hooked too quickly. I’ve been using essaypro for a while a couple of years ago. I can’t guarantee they’re still providing the same quality papers, so better start with reading some revises and find out if essaypro.com is good after all. 

You can also get samples from websites like coursehero, but mind that it ain’t free. However, the collection of papers that coursehero has is outstanding.

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