Search for "Monica's Gang" on Amazon. Many digital issues are available for a very low price, and some are included in subscriptions like Kindle Unlimited. You can download them directly to your device via the Kindle app for offline reading.
The official Banca da Mônica app is the best legal repository for digital comics. Available on iOS and Android, it offers a subscription service often referred to as a "Netflix for comics." gibi turma da monica em ingles pdf download
Open the PDF. Read the English comic from start to finish. Try to understand the story using only the pictures. Circle words you think are important but don't stop reading. Search for "Monica's Gang" on Amazon