If you are in the US, the simple solutions would be either
One) Serena shades from Lutron. These will work with the official smart things/Lutron integration. Nice shades, but pricey. They do run sales 3 or 4 times a year, and I would expect one in the next month or so before the end of the year .
Z wave shades from zebra blinds. Nice shades, one of the staff is quite active in the forum and can answer any questions. They have tested smart things integrations. They have a thread here:
Ikea now makes smart shades that can integrate with SmartThings. They only come in one or two colors depending on where you live and a limited choice of sizes, but they will work for some people.
Another less expensive but much more complicated solution is to create your own integration with dooya motors. Check the project report section of the quick browse lists in the community – created wiki and look on the shades and window coverings list for project reports from other members who have done this: