I was looking for a clean and clear comment section for my blog and I did not find anything until I found Commento. It is totally free when we self-host it. And there is an alternative free method to self-host it with Heroku if your domain added to Cloudflare, otherwise you have to pay $7.00 to Heroku to buy Hobby Dyno for install SSL.
If someone interested to have Commento with free hosting, here is the way to do it. If you are confused with setup, please do not hesitate to contact me. I will help you.
In these days I am optimising the dark mode of my Commento with Casper 3.0.11
And I have slightly modified Commento to remove Powered by Commento. I can show you how to do it also. You can check it at Android වැඩකාරයෝ.