Here are some good ones ive recommended before. Lots to keep you buisy. I have been churning through books since the first lockdown. Went from e book sceptic to having a big library now (thibk there are 300 read books in there now )
There is a Guide to kegel exercisers on the sight. Basically jiggle balls are kegel weights with a free moving ball inside them, so they shake when you move around when you have them inserted.