I need an SEO plugin that is similar to SEO lite, https://devot-ee.com/add-ons/seolite. Basically something that is simple, with global settings, and entry overrides. I like this plugin, but its main issue is that it cannot deal with images. The fact that EE cannot have multiple field groups per channel also basically makes it so you always have to use a plugin for this feature. I mostly just maintain EE websites and don't do new development with EE. Some suggestions from people who still develop heavily with EE would be great. This site is EE 2.9.
Have you checked out SEO Lite's extra tags functionality?
You would still need to create the fields for images etc. in the different channel field groups, but at least you've only got one header code (the SEO Lite template)