Question: Is there a service that offers a large collection of free and premium stock photos, with new additions every month?

If you're looking for a service that offers a big library of free and premium stock photos with a monthly selection of new photos, Everypixel is a good option. It's an all-purpose stock photo search engine that indexes photos from more than 50 sources and uses AI to process and filter results. The service also offers a selection of free images each month, which can be useful for finding the latest photos.

If you're interested in AI-generated images, Impossible Images has a stock photo library that's been created without any reference to existing images. It includes an AI image generator that lets you create custom images based on prompts, and it offers a range of subscription plans to suit different needs and budgets. It's a good option if you want to create high-quality, original images without the complications of licensing.

Last, 123RF offers access to more than 100 million images and an AI Image Generator that can turn text prompts into photorealistic images. It also offers several AI-powered editing tools, so it's a good option for anyone who needs a broad range of high-quality stock photos and some flexibility.