How to improve iPhone image printing quality?

Hello everyone, I'm facing some challenges when trying to print high-quality images directly from my iPhone. The prints often come out with lower resolution or not as sharp as I expected. Could you please guide me on the settings and adjustments I can make to achieve better print results? Specifically, I would like to know if there are any recommended settings within the iPhone's photo settings or specific printing apps that I should be aware of. Additionally, are there any best practices or tips you can share for optimizing the image quality when printing from an iPhone? Thank you in advance for your assistance!