Garden Tiller

[GoatDriver]

I have a rear counter-rotating tine Craftsman and a Mantis. The rear tine tiller is much easier to use than a front tine and great for new ground, amending, or weeding, it really breaks up the soil. I only use the Mantis after my plants get bigger and the rear tine will not fit without damage to the plant.
Here's a few pics of my garden being amended using the rear-tine

 

[InvasiveCreeper]

Lehman's has a a good selection:

http://non-electric.lehmans.com/hardware/Cultivator

My favorite:

https://www.lehmans.com/p-3274-e-z-till-garden-cultivator.aspx