Protons and heavier ions accelerated well above the solar wind plasma thermal energies and galactic cosmic rays are of concern to our society due to their effects both on electronic components of instrumentation embarked on satellites and on astronauts and flight crews. Thanks to the data gathered by Solar Orbiter (SolO) and Parker Solar Probe (PSP) missions we expect to gain insights into the development of solar energetic particle (SEP) events in the solar corona, the propagation and acceleration of particles in the interplanetary space and to also improve the nowcasting and forecasting solar particle-radiation storms. We present here recent data analysis and simulation results using observations from SolO and PSP, conducted in our group, and the latest developments in the forecasting of SEP events. We summarise what is still needed in order to apply the state-of-the-art numerical simulation models to operational tools for SEP events forecasting.