If you’re comfortable reading English, there are a number of books that go into detail about memory palaces. One that I’ve read recently is specifically devoted to using memory palaces for verbatim memorization: Solomon’s Memory Palace by Bob Lingerfelt. If you’d like, you can read my review of it here: My Recent Reviews [Memory Books] - #9 by RMBittner; you’ll just need to scroll down to the title.
Since you’re somewhat new to memory palaces, I’d highly recommend Lingerfelt’s book. Although I had some issues with it, I think it would offer some invaluable advice for you.
Bob