Up until about 2010 one of my favorite boat magazines was DIY Boat Owner Magazine. It covered both sail and power boats. Recently I stumbled over the following Australian marine discounter's website, which has all the back issues. While the electronic articles are dated, the basic stuff is still good. Check it out.
https://www.whitsundaydiscountmarine.com.au/buying/better-boating-guides/diy-boat-owner-magazine-the-complete-marine-mainte/
Great link, thanks! I hadn't heard of the magazine but I read through a couple of the online articles just now and it looks good. I've bookmarked it..
Rob