Is there any 5e spell that I can use to transform into a bulette? (For any pc class)

For some reason I’ve just become obsessed with bulettes and I want to play a character that can turn into one for the new campaign we are starting. I am very new to dnd, so this might be a silly question, and balanced homebrew is on the table. We haven’t decided on what level our party is starting at. Hope someone can help!