Archive.org is hosting a metric ton of books countering Calvinism: link
Excerpt from A Cultish Side of Calvinism:
Profoundly different views of God. This is what lies at the heart of the matter —not relatively nontheological issues like styles of music or liturgy but the grave position of holding onto different views of God. In the pursuit for truth, amid obstacles and rabbit trails, one should always remember that the heart of the matter is indeed different views of God.