If you don't mind saying, where are you? I'd be happy to take a glance at the background of the two Churches and comment on them. Off the top of my head, I might recommend the Serbian Church. Many Greek Churches, unfortunately IMO, still do pieces of their services in Greek. But at the same time the Greek Church may be somewhat larger, and thus include more converts and Orthodox of other backgrounds, and give a better flavor for what "mere Orthodoxy" is like.