The Nancy Grace Roman Space Telescope (formally the WFIRST mission) is currently in Phase B with a launch date set to ~late 2025, and teams are actively working towards the Preliminary Design Review for CGI. The guaranteed "Tech(nology) Demo(nstrator)" phase is currently set for ~3 months of observing during the first 1.5 years of the mission. Thereafter, NASA envisions a Participating Scientist Program (PSP) for community involvement. CGI will be the first instrument to approach the contrast and angular separation parameters needed to directly image mature gas giant exoplanets in reflected starlight and much more.
Roman Space Telescope at IPAC's simulations page in particular the latest Observing Scenarios (OS)
SISTER (Starshade Imaging Simulation Toolkit for Exoplanet Reconnaissance)
RadVel allows to simulate and/or analyze RV data
Other Exoplanet Imaging Data Challenge (2019-2020) which focuses on comparing post-processing algorithms for detecting exoplanets with existing ground-based high-contrast imaging facilities.