There is a great deal of COCA-based frequency data that can be downloaded and used offline, including the top 500,000 word forms, the top 60,000 lemmas, 4.8 million node/collocate pairs, an e-book, and 155 million 3-grams. In this frame you can see sample entries from the collocates list, which contains 4.8 million words. Remember that you can also use the [RANDOM] button in the main search form to the left.