Once you have a topic, like "feminism in art" or "Van Gogh" then you can start to move into a more specific research question. See what's available for research, but also consider the 4 Ps!
Can you narrow to a specific:
- People
- Problem
- Perspective
- Place
As you search through the resources below, jot down questions that pop up for you. For example you might be reading basic biography info about an artist but it will inspire you think "hmm, this dude seems problematic, I wonder how black communities reacted to his work" or "this movement doesn't highlight a lot of female artists, I wonder if they had their own collective". The whole research process is easier if you're actually curious about finding the answer to your question.