Use the lightroom mobile presets. A preset file can be imported, tapped and the photo will immediately change. Then fine-tune the exposure to best fit that particular image. Many creators go with the same preset for an entire month, to match their posts. You can also make your own edits as well, making it the easiest way to be consistent. Boostbysocial has a post that deals with cohesive visuals that’s the sort of routine. Tip: Use the preset on the original image, not on a photo that has already been edited—this will result in a higher quality image.