Advice to find tenant for empty room

Other

I have a 3 bedroom flat and one tenant has moved out. The room has been advertised for a couple of months now with not much luck, the room is small but the price reflects this. Nice area and the flat is nicely decorated and well looked after. It's advertised on spare room.com only, just wondering what other websites work for other seasoned landlords out there? I have only ever rented whole properties i.e. on Rightmove (and I am going to put the room on Open Rent soon) so it feels like a different approach is required. Clearly the coronavirus is not helping matters.
Any advice gratefully received, thank you.