I have returned armed with tons of info lol. 

https://wagwalking.com/breed/rat-pinscher 

This tells about the history of the breed. and what they are used for. also, what they look like, temperament, and everything. I hope that helps! Nikki is one of these. 

Oo these are cute! Thanks for the info!

I have a few other breeds I have been wanting to start first, but I will definitely keep them in mind for the future! I hope they get added for you (Or as a cross) :)