If you’re preparing an NLP dataset for a Masked Language Model (MLM), it’s important to have high-quality, diverse data to ensure the model can effectively understand and predict contextual language. For a comprehensive list of NLP datasets to help you get started, check out this blog: - Top NLP Datasets to Supercharge Your Machine Learning Models . These datasets offer a variety of text sources that can support a range of NLP tasks, including MLM training.