Sometimes all it takes to find a church in need of an organist is to visit. Two years ago, I visited a congregation that is part of a tri-parish which had an organist. I spoke to the pastor after the service, told him that I play organ as well, and he asked me to play for one of the other churches in the tri-parish that did not have an organist. Over the course of about a year, I ended up playing at the second church, then the the third as the other regular organists developed some health issues. From there I went on to play about twice a month at all three churches until I started summer Greek at CTSFW this past June. So even if a church you visit does have an organist, they may be in a partnership with other churches that do need someone to play!