Are you looking for producers in just your country?
I know some really good ones, I’m producing there too for me and also for my customers.
They are cheep and existing since years.
They are doing really good job, cheep but the quality never looks cheap especially the sewings!
You have to search for small production ateliers not factories.
You can check my collection at Instagram : Labruyereofficial
I'm Funda a Women's Fashion&Graphic Designer.
I've worked before for fast fashion and high luxury brands in Germany as Junior Designer and then as Head of Designer.
Now I'm working for companies in Turkey which provides worlds most known brands designs and production.
I also give design consulting for small or start up brands. Which means I create a whole concept for them from the latest trends to the colors and prints. I'm making the technical drawing for the clothes, I determine the fabrics for each style and if my customers ask for then I'm making the prototypes and the whole production.
I've customers similar to you who constantly order collections from me, I can support you in every step.
I already have some producers, some manufacturers, some ateliers. Trust me not every manufacturer is producing small amounts for low prices with a good quality.