I created a similar list a few years ago, but times change. New places arrive and old ones shut down. Here are some of the current ones I use, some free, some with variable pricing. Some with special fun features.
The Independent Author Network, truly does what they say they are going to do. They have free offers and low priced (ONE-TIME FOR LIFE PAYMENT) plans, that make it worth the few extra bucks.
Readers Favorite offers free reviews, and fairly quickly I might add. They are professional, in-depth and honest. Your review gets posts on their site, Amazon, and good reads. Plus so much more.
All Author gives you a landing page of your own. They also create fun interactive blurbs and gifs. You can set up auto-tweets too. Check out this cool GIF I made.
Book Bub also gives you a landing page and you can follow others. I haven't seen anything truly interesting about them as of yet. But free is free! (I can't tell you how many time I've written boob bub - laughing had to share)
The Awesome gang, reviews and gives you a spotlight page. They email every Sat new books and reviews.
The Indie Reviewers, once again Free reviews! Which we all need to pimp our books. The one big bonus with finding these reviewers is that most of them have their own blogs and post their reviews on them. This gives you a completely different audience with every single review. The hard part is finding a reviewer who is not so bogged down that they have the time to accept you.
The Bold Mom, this is for the Horror Genere only. The site is unique to all the rest and professionally done. SHe advertises, spotlights and reviews, depending on what you need. the prices vary.
Many new authors don't know Amazon has its own author promotion site. Author Central. Make sure you sign up...and don't forget to update your info as you change.
Of course, everyone knows about facebook, twitter, Instagram, Pinterest...and on and on - however, don't underestimate creating your own website, even if it has to be free for a time.
Write everywhere - Blog on multiple platforms. Connect your blog to your Amazon page. Also submit to magazines, contests, guest blogs. Even simple idea's like writing reviews or plots on IMDB can gain you new eyes. Don't think any platform is too small or doesn't have even viewers. Give it a shot!
Happy writing folks! See you next week :) Theresa Jacobs
Please add your promotion idea - or even places you own - in the comments.