You need a degree for any technical occupation under TN. The only category for which a degree is not necessary is "Management consultant". Honestly it is best

You need a degree for any technical occupation under TN. The only category for which a degree is not necessary is "Management consultant". Honestly it is best for someone in your situation to work remotely from Canada for a year after the company gets set up, then go to the states under an L-1 Visa[1]. Do not attempt to go under a TN-1 visa as they are very strict, and if they do not let you in, you could be barred from entering the US at all.