Thanks very much for your suggestions.
"Meditations" was free to download for my Kindle so I have grabbed that. "Thinking Fast and Slow" was already on my Amazon wish list!
I am excited to read Bart Ehrman especially this one: https://www.amazon.co.uk/Jesus-Before-Gospels-Christians-Remembered-ebook/dp/B00Z71VJJS/
I hadn't heard of Robert M. Price but of added a couple of his books to my Amazon wish list. I have also added all of your Humanism recommendations so thanks for those :-)
I will keep that book by Thomas Talbott in mind. I'm not currently in place where I think I'm ready to read a book like that but there may come a time.