I propose to make it possible to create research, which, upon completion, is not marked anywhere, but can generate items and give reputation points, but are available for research again and indefinitely.
This is mainly to increase the usefulness of scientists in the later stages of the game, when the need for new technologies is less, but there is an urgent need for resources. Usually the player simply fired scientists and hired engineers. However, Ellerium-115 cannot be produced, and scientists could provide this critical material through endless, but lengthy, research.
In connection with the above, there is one more suggestion. Enter the cost in money for research.