@Kiliana0 A few weeks back in this thread I suggested that the CC add a new board specifically for hosts to post co-hosting ads. The Community Managers said it was under discussion, but at the moment this is a feature we don't have. Also, I'm not sure if there are any other active participants here who live in your area, so you might get more traction in a local group on social media.
As for pricing, my advice would be the same as for a host with a similar setup in this thread. Bear in mind, an Entire Home listing has much more value than a room in an apartment shared with other guests, so renting two bedrooms separately to different guests will not necessarily generate more revenue than renting the whole apartment to 2 people.