RockHound Rock-Rake should do the job and does collect the payload into a basket allowing soil to sift though, depending on how big the large rocks are; that you speak of. I don't have one, however I have used one or at least something close (not sure of brand). We had some properties that we could run for a few rows before dumping and others where we could only make one pass if that.
Harley Rake will windrow them off to one side for collections later. This would be a nice option if you have a way to drag them away after and don't want to dump bucket after bucket, depending on how many rocks you have.
If you are speaking of a landscape rake, they will drag rocks around almost like that of a blade, however I don't beleive that is what you are looking for and you won't collect even close to that of the other two options.
You also want to decide if you will be renting or purchasing, if purchasing, I would ask for a test run of the ones you are looking at. If you are renting, you may want to cosider renting a skid with it. I am not sure of models that have come out in the past year or two, however the rockhound type rake we had would shake the s... out of anything it was attached to. We mainly ran it off the skid in reverse.
One positive I will add is that we figured that we saved the time and labor of 3 to 4 people; that could then be done with the rock rake in a quarter of the time. Good Times.