If you want to have some fun with AI-generated responses to your handwriting practice, Lettergram is worth a look. The service lets you send and receive physical letters to your mailbox from a custom AI pen pal you can select from. You can write back to the AI, and it'll generate new letters, over and over again for a 30-day free trial. It's a good way to get some creative writing in while also getting some AI interaction.
If you're looking to improve the quality of your writing, Wordvice AI offers a suite of tools that includes an AI proofreader, paraphraser and translator. That can help you generate high-quality, error-free content, and it's good for students, researchers and content writers. With a range of subscription plans, it can accommodate different needs and levels of use.