Okay so I found this really cute advertisement shop, and they do wall post advertisements (sometimes annoying yes, but ALSO sometimes you find some really good fics through that) for FREE :D Click the banner to be redirected :D (or here's the link https://www.asianfanfics.com/story/view/1194951/strawberry-jam-free-advertisement-shop-1-10-spot-opened-advertise-shop-open-advertisement-advertisementshop-event)