I've never been on a thru-hike. I want to start off with one I can be done with in 3-4 days max and ideally I want a loop to reduce travel logistics. Or if it is a straight line, for it to be out and back in the 3-4 day timeframe.

I was looking at the Eagle Rock Loop in Arkansas;
https://www.fs.usda.gov/recarea/ouachita/recreation/hiking/recarea/?recid=10732&actid=51

Anyone done it? Are there better loop trails for me to look at?