Surprised you didn't mention the assortment of mindfulness based CBT approaches other than ACT. There's also positive psychology based CBT, which emphasizes our innate capacity for love, appreciation, gratitude and self-sacrifice.

Just wanted also to share one of my favorite examples of cognitive distortions based on limited assumptions - a misreading of someone else's intentions (sorry, I don't recall the source of this story)

A woman is sitting at a table in an airport, waiting for her flight. A young man asks if the other seat is taken and she welcomes him to join her.

They're chatting for awhile, and she notices he is absentmindedly taking cookies from her cookie box without asking. She's initially just somewhat surprised, as they had been having a warm conversation and she's sure he would have understood he would be welcome to ask.

She goes on, and as she sees him continuing to take her cookies, she grows increasingly angry, but still tries to hide it. Finally, he finishes the last cookie, still hasn't said anything about it, and they say goodbye.

As she's fuming about this, she looks through her bag, sees her box of unopened cookies, and realizes he had brought his own and because it was the same brand, she had assumed it was hers.

"Mind reading," labeling, shoulds and a whole host of other distortions. I just love the simplicity and sweetness of this story.