Text-to-speech is particularly useful for phrases that you expect to use in real situations. You can practise greetings, introductions, questions, restaurant phrases, shopping conversations, transportation, directions, work situations, or casual everyday expressions.
Rather than memorising very long dialogues, start with useful sentence patterns. For example, practise how to ask where something is, how to order something, or how to explain what you need. Once a pattern becomes comfortable, replace one or two words and create another sentence.
This helps you move from memorising fixed phrases toward building your own Danish.