The list is in no particular order! Check out these classifieds alternatives!
Adlist24 is a FREE classifieds website where users can post advertisements. They can also post job listings and local events as well. This alternative popped up out of nowhere, but it hasn't done anything sinister to anyone in the SW community.
It's also going up in Google everyday when users search their city followed by escorts.
OneBackpage has been around for awhile. It was up when the original Backpage was still active. The website is highly ranked on Alexa! However, I think it's more popular in certain areas.
Note: OneBackpage now only accepts Bitcoin as payment for upgrades.
CityXGuide is an adult classifieds based in Hong Kong. It's free to post, but users can purchase upgrades for their advertisements. Users can also get verified by sending in their photo identification. The verification will make their ads stand out by saying CityXGuide Verified.
Note: I like how the website lets users have more creativity via the dashboard. When users log in, they have an account dashboard where they can manage their ads, add an FAQ,add designs, etc.