First of all I want to make clear that these are promotional posts rather than reviews, but this was the most fitting forum for the topic. They will be posted to the tumblr blog lgbtwebcomics, which I run.
They’re basically like this and this and this. I think these kinds of posts look good aesthetically and tend to catch attention better than simpler ones, but I don’t feel it’s appropriate for me to post whole pages from someone’s comic without their permission.
For the posts, I choose a handful of comic pages (or sometimes only one or two) that I think will best entice readers to click through and read the rest of the comic. I include the comic’s summary, links to where the comic can be read, and links to places people can buy merch or support through Patreon where applicable.
I can usually find everything I need on my own so all you need to do is give me permission if you like, but I’m also happy to take input from you if you want anything different or specific in your post (or for you to make the post yourself and send it in).
Leave a reply to this post if you’d like to give me permission to use sample pages from your LGBTQ webcomic to make a promotional post about it.
(There's also a version of this post on Tumblr if you'd like to help spread the word)