Don't buy just a neck sizing die set as your only dies to reload with. Get a full length sizing die to go with it. Other shooters will give you brass and sometimes you can find it at the shooting range but it has all been once fired in someone else's rifle and may not fit your guns chamber . It is best to resize it in full length die, load and fire in your rifle then you can neck size after that. There will be times when after several neck sizings and firings the brass will stretch a bit and you will need to full length or partially length size to set the shoulder back enough to chamber. Neck sizing dies only size the neck, they don't set the shoulder back or size the case body, which sometimes needs to be sized down a bit.

All die brands from the big companies work fine, I even like those from CH4D ( a small co. ) kinda like Ford or Chevy thing , most choices are personal preference.
There are some sets on the market that have neck and full length in the set together. Lee may have sets like this.
But do get both or at least a full length to start with.