NASA has opened an education project in which students “research and design ways to protect astronauts from space radiation”:
The program is framed around the Orion crew spacecraft that Lockheed-Martin is building for NASA.
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As a long time opponent of the $10B+ Orion project, as well as the $20B+ SLS rocket that will launch it, I can’t help but point out that their huge costs preclude funding of improved radiation protection technologies (e.g. magnetic shielding) as well as of in-space transportation systems of a scope to allow for substantial material shielding.
The Inspiration Mars project, which will use a crew capsule (most likely a SpaceX Dragon) attached to a habitat module, expects to provide fairly good shielding by surrounding the crew area with water, food-stuffs, waste and other materials. This privately funded first attempt at a truly deep space mission shows what can be done to protect crews from radiation with current technology and at relatively low cost.