Zone 5 Guilds That Work

Hello all,

I am a newbie to permaculture.  I've found tons of books and resources of how to do everything from scratch but it seems they all talk about theory and I can find little by the way of examples of proven guilds for my climate (Zone 5a).  Can anyone share successful guild examples?  Where can I find more? I understand I will need to critically evaluate these, my lot, and all of those other factors.  Thank you very much for any help!

Thanks!