It absolutely depends on too many factors. You would have to give much more details. What niche, traffic sources, keywords, traffic country etc.... 8K/month is not much, but if it's quality traffic for valuable keyword it might be well monetized.
try to monetize with the relevant CPA offers or something like adsense if you cant find proper CPA offers. assuming how much you may earn is hard matter, all depents on your traffic quality and testing