Many large regional firms offer work experience programmes, usually in the summer. You can usually find details on their websites which will require you googling local firms. Competition is quite high, but if you apply to a few you might find one comes to fruition. Some firms have just started to open in-person schemes again following covid.
However, w/e isn’t necessary for a law degree as such. Many people don’t get the opportunity to do so & a degree is academic not vocational.