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We propose continuation of our long-term monitoring program to identify and study the cyclic behavior of the coronal emission of stars similar to our Sun comma that has been ongoing since XMM.s AO-1. Five stars in three stellar systems have been monitored at regular cadence for almost two decades comma providing for the first time clear evidence of long-term cycles in the coronal activity of normal stars. Thanks to the program.s continuity comma this is a data set with unique legacy value for the understanding of ..normal stellar coronae. Continuation of the program into AO-19 is needed to progress in the understanding of the coronal behavior across different activity cycles comma and to link the extant time series of XMM data with the photometric X-ray monitoring that will be performed by eROSITA.