If you’ve decided that you no longer want to take the software route, you can hire designers on Upwork that will design all of your tech packs needed for your product designs. If you do plan to use Upwork, make sure the designer has experience in building the kind of tech pack you need, whether it's for clothing or shoes or something else. They may not be very good if they've only worked with one type of product before. You can check their portfolio for past work and contact them about any questions you might have before hiring them.