Go Local
Most of the Homesong gigs I've hosted have involved inviting a touring performer from "outside" and setting up as a "proper" gig, albeit far more relaxed and intimate than most kind of performance situations.
But there is an even simpler, more chilled way to go, even though it works much the same way. If you know a few local musicians/songwriters (or even just one) invite them round to your house to play. And then invite a few friends to come and listen. You could put a "busking box" out to provide the player(s) with a little something for their troubles, or to donate to a local charity, but money doesn't have to play a part for these kind, necessarily.
And then see what happens.
We've have a few fantastic nights doing this. One where we invited some local young singer-songwriters to play (some for the first time in public) was particularly good. It's always brilliant to see younger folk stretching their wings creatively.
And a living room is a lot less intimidating than a pub, or a big hall if you're performing for the first time.
So why not go local and bring the music home?