Decks for a Disney fan couple

Hello people! I want to introduce my girlfriend to card games (as I am a huge fan of others like mtg, unlimited or pokemon tcg), and I feel that Lorcana is the most appropiate to play together, as we are both big Disney fans.

I don't want to spend much as I don't know if it's going to work haha, so I was looking for a couple starter decks that are fun to play. I also would like to have some good cards in them and, if possible, both should be quite balanced to each other. Is that possible?

I read in this Reddit that the Madame Mim deck is quite good for it's price, but if I'm not mistaken there's another expansion coming earlier? maybe should I wait?

Thank you!