It's always better to get to know local people and get in some nice cozy area where you can get to know people as they are. Couchserfing is cool idea. Hosting is great adventure if you have a space to show hospitality to traveler who want to embrace meeting people on the way. Never done it myself but my good friend has hosted people in Riga.

Dire Stairs 'Brothers in Arms', Fleetwood Mac 'Dreams'