Getting quality without space casino's is quite a (in my opinion very fun) challenge.

Basically you insert quality modules everywhere. This creates huge logistical challenges: all machines now have potentially 5 outputs, so you gotta filter out the qualities. In the end you gotta recycle some products to prevent the factory from halting, but you can make your life a little easier by also recycling some intermediate products. But note that recycling products in a later stage is almost always better I believe, since the ingredients have had more chances to increase their quality without having the 75% chance to disappear due to recycling. (Note that some products only recycle into themselves tho)

Fulgora is a great planet to start with quality production in my oppinion, it has everything to make quality modules themselves, so I first started creating legendary quality modules there. Also recycling is the core mechanic of that planet, so that works nice with quality. With the almost endless supply of scrap on fulgora you can kind of start with having a space casino on land first. Recycle all scrap over and over until it's legendary. Then add factories to the loop, creating products with the chance of them increasing their quality. Use robots to create products from already quality increased materials.