With the franchise possibly getting an official Western release at some point I'd definitely recommend either Frontier or Delta for beginners. Nice 25/26 episode series with the best pacing and length out of the main series. For movies I'd recommend Do You Remember Love as a great retelling of the SDF series. Each instalment works really well standalone so you don't have to worry so much about where to start. Sometimes it doesn't even matter what is canon tbh.Haven't even dared to think about scratching the surface of Macross, but as for the avatar, her portrayed happiness is pretty contagious.
And yeah Freyja's a joy to watch. One of my favourite characters for sure