If you haven't done positional shooting before, consider attending a Project Appleseed. They are available in OH.
https://appleseedinfo.org/schedule/?...=OH&state=Ohio
For indoors, I'd stick with an AR .22 with scaled down targets to simulate longer ranges. The blast from rifle calibers is too much indoors, and you're not gaining benefits over a .22 at those distances. This will allow you to at least practice fundamentals somewhat, however indoor ranges are usually too restrictive for rifle practice.