Our library corkboard has a whole section for room rentals and house shares. I see them in laundromats and local cafes too. Even with all the apps, these old school boards still have the best deals from people who aren't online much.
Those offline spots cut out all the digital noise and middlemen. You're dealing directly with someone who just wants a good tenant, not the highest bidder. It feels like a totally different, less stressful world.