I like the straight edgers. I like a #2 or three edger. It will just take some time to figure out how much ya like to take off the edges. If ya get a #2 and ya dont like it you can make it bigger by running it up and down a awl shaft with emery paper wrapped around the awl. I reckon ya could get a 1,3,5 if ya have the money.
Best of luck, Mike