There are many people, places, books, and sites totally dedicated to LOA (Law of Attraction).
I could say the powerful intentions forum, as its founded on the principles of LOA, rich dad poor dad, think and grow rich, many other books on the subject.
-There are many coaches in this field too, though you have to find the resources that resonate with you personally.
I myself find that if you accept that your 5 senses are feeding you an "illusion" and that you can hold true to your "intent" and then get out of your way (dont "worry" or dwell on the results)things work best.
Visualization may be a key, but if its only a "vision" in th eback of your mind you KNOW its only a "picture"- you near have to "trick yourself" into believeing your Intent BEFORE it "manifests", Appreciate it Before you see it, enJOY it before you have it...
then you are "lined up" and are allready open to it.
some do this instantly, some take years for opne thing, its utterly your choice
hope this helps a bit,
have a Great Day