Adding another blog to exising one

Hi,
I have several blogs and currently they’re three separate blogs. One of them is a self-hosted wordpress blog. I’d like to transfer the other two to the self-hosted wordpress blog (the other two are on blogger). Ideally, I’d like the other blogs to become tabs of the main one (so let’s say I want the travel blog to be a tab in the cooking blog). Is that possible? If it is, could you please point me in the right direction?
Currently, my self-hosted blog is https://www.annasrecipebox.com, if that will help provide an answer.
Tank you.