I used to work for Freenom, and while they have a policy against domain squatting for free tk/ml/ga/cf domains, they have an API that lets you buy domains from

I used to work for Freenom, and while they have a policy against domain squatting for free tk/ml/ga/cf domains, they have an API that lets you buy domains from any other TLD at cost price. Freenom themselves make money from ads on residual traffic after free domains expire.