https://homestead-honey.com/2017/03/27/planning-a-fruit-tree-guild/

There's a really cool one. It seems a lot are based around apple trees, which are pretty cool, but I don't have much interest in an apple tree. Looking for more, thanks for asking about this. It's a big learning process for me too! Gonna send off for your SBI, then I'll be back with more links!