Featured Image for Home Page?

This plugin will set a fallback image when no featured image is set. So when a post is missing a featured image, the fallback will be used.
You can create exceptions.
So you could set the logo as a fallback.

Not sure what you want. Hope my answer helps.

I would like to know this as well. It is not working for me. I set featured images for all of my posts, so that when I post the link to one of my posts on facebook, that is the image that shows up next to the link preview.

What I want is that when I just post the link to my blog’s homepage, https://www.wineandwatch.com, the image preview that shows up is my logo. I can’t seem to find a way to get this to happen, though. Whenever I try to share my homepage, it gives me 3 choices of pictures and it’s the 3 featured images from my last 3 posts.

Any way to fix this? Please help!

After reading both your questions beter again. I understand what you are asking. The plugin does not support that.
I do have a solution.

Paste this in functions.php

function add_home_FB_logo () {
	if (is_home()) {
		$image_id = 690; // ADD your image ID here
		$image = wp_get_attachment_image_src($image_id);
		echo '<link rel="image_src" href="' . $image[0] . '" />'."\n";
	}
}
add_action('wp_head', 'add_home_FB_logo');

It may conflict with other plugins that do the same.

Thanks so much!!