The verb 'to recommend' in Japanese reads すすめる and おすすめ is a noun formed of that verb, meaning 'recommendation'. おもしろい本が読みたいのですが、何かおすすめはありませんか。－I want to read a good book, do you have any recommendations? 外国語を勉強したいなら、italkiがおすすめです。－If you want to learn foreign languages, italki is my recommendation.

どっちのラーメンがおすすめですか？ (Which ramen would you recommend?) 安いほうをおすすめします。 (I recommend the cheaper one.) ^_^

You can use おすすめの+ noun. おすすめの映画ある？ →Can you recommend me some movie to watch? And, you can also use おすすめ as noun. この本は、おすすめですよ。 →I recommend this book to you.