Picmaker

Truth be told, Picmaker doesn't have as many designs as Canvas Premium but I can how it can reach that quite quickly.

For a lifetime deal rather than a monthly subscription it is a no-brainer though.

The AI randomizer is surprisingly good. If there is more than one picture in the design it tends to randomize both pictures to the same. I believe they will be fixing that soon though. If in the future it also helps out with the text, it would be fantastic.