Hase Bikes of Germany makes a variety of delta trikes and a semi-recumbent Tandem (upright in the back, recumbent in the front) , along with a wide variety of adaptive accessories to accommodate different physical differences. Like many products for folks who have different needs than the mainstream, they tend to be expensive. You could contact their USA distributor,
https://www.hasebikesusa.com/ to locate a dealer near you.
https://www.rad-innovations.com is another site of the parent company of Hase USA.
https://www.poweroncycling.com/ Power On Cycling in Newport Tennessee works extensively with the Veterans Administration providing adapted recumbents for injured veterans. While they specialize in recumbents, they may be able to guide you to possible solutions for your situation.
Best of luck in your quest!