The current pre-release of the client ("pioneer" in the version) is only compatible to itself. So you can only play with other testers. Please be aware!
As Strydxr already stated, the Dojo might be for you. You can find some information here on the forums as well.
If you can make EU evening hours for training, feel free to DM me. I'm running a training group for beginners, up to roughly 1k rating.
https://forum.faforever.com/topic/9594/the-faf-dojo-voice-based-coaching
