Due to the Forestry closure there is limited space. Camp Edison is private land so they are still open, I would try them.
There's probably some camping around shaver but you're probably better off going towards dinkey creek or courtright lake
Not to sure I would call or look up camp Edison I saw a lot of campers there.
There is dispersed camping around the lake administered by the US Forest Service. I would recommend going to their website for more info.
Thanks! Your answer is awaiting moderation.