What do those out there lack? GoConvey, Gingko + Gomega, Goblin, etc.
What are your requirements? I'm one of the owners of the GoConvey project and I'm happy to answer any of your questions about that project. Ginkgo and Goblin are great choices as well.
BDD is very much not in the spirit of Go programming.
Could you please explain this further? I'm still learning Go but I haven't encountered anything in the philosophy of Go that (to me) would suggest that BDD is "not in the spirit of Go programming".