Find What You Need
Viva prep is personal. You have to take responsibility for it by thinking about what you need, listening to the advice of others and figuring out how you meet your needs and preferences.
There are lots of good ideas for viva prep. You have to take responsibility for figuring out which ideas you’ll follow, which you’ll adapt, which you’ll avoid and which situations you’ll need to consider further before you land on the idea for you.
What do you need? As you finish your thesis and work towards submission consider your options and find what you need to prepare well.