Hi and welcome!
Originally Posted by Deviant
...we have talked quite a bit about bringing someone into our relationship if we found the right person.
I recommend doing a search for topics you are interested in (the words must be longer than 3 letters for search function to work), and also use the Tag Search for keywords such as "new to polyamory," "unicorn," "triad," etc. And feel free to ask as many questions as you need!
I also think you might benefit from reading the following threads which cover the concept of "bringing someone into a relationship" that you might find informative:
Added to, Joining In
Inclusion in poly
In the process of forming a triad.....so much love and fear. so many questions
Relationship structures, triads, unicorns and all that