You can use ThomasNet
to find manufacturers/suppliers ... you can do what we did and that`s going around your local area and finding companies by trial and error; and we found folks at trade shows (and doing what you`re doing now) ... you can also use professionals who do all of this sourcing for you ... it`s a matter of how hands-on and comfortable you are with things.
Again, I`m just saying there are reasons for not going to China (and some other countries) and you can still off-shore for savings (we make our plastic tacos in Taiwan; our closer cost equivant is Mexico; when we next scale up we`ll again take a look at the U.S. but right now we`re not big/volume to make it work).
I don`t know where you are in your process, and youth market isn`t materially descriptive, but this is the kind of thing that you have to plan on taking some time ... we took nine months to create our plastic version from our steel ones and that is with knowing a lot about what we wanted and a real simple part.
There are also regions of our country where certain industries are concentrated and depending upon your product and overall price (we`re a "penny part") you can get some attention; e.g., Detroit and auto parts makers are very open right now ... plastic, steel, electronics, etc. ... it`s worth your time to take a look at who`s making what, where, and why. You also have large, multinational corporations where you can deal on a local level and still have them deliver you cost savings by the actual manufacturing/assembling in one of their off-shore facilities (most of them own their own plants in China too ... sigh).
When you have "all options" you have almost too many choices; not a good thing and you need to start weeding down your "clutter" by setting some basic standards and requirements; it`s all up to you, but when you figure out your costs and materials and logistics and the million other details of getting from the drawing to the store you have a lot of decisions to make ... it`s not easy or certain, but it`s done all the time and you`re the right captain for your ship right now (that`s just my guess; I`m assuming you`re someone who wants to make something new and is not interested in "money for nothing" kinds of entrepreneurship).
Too many words ... no help to you; I could tell you who I use (they are on my website) or give you a lot of companies I know, but there`s not really a shortcut to the education you need to get to know what you need to know to make the best decisions you need to make ... it`s a journey and while I can tell you why we`ve done what we`ve done and what it means to us, you can`t really model/use our specific experiences unless you`re in a similar frame of mind and/or have a real simple part kind of thing.