Class 116 dmus dominated the Shirley line in 1985. By 1987 theyd been joined by class 117s transferred from Bristol to Tyseley. Also class 114s transferred from Lincoln to Tyseley around the same times. Class 115 cars formed in 4 car hybrid sets worked to Shirley from about 1987. Class 101 dmus worked across there too. Class 150 were introduced from about 1987, first appearing only on Sundays. They gradually took over from about 1990. Class 165 sets from both Aylesbury and Reading depots worked to Shirley on Saturdays only during the summer of 1994. This was because Tyseley 150s were being used on Summer Saturday Skegness runs. During the Central Trains years class 150 sets dominated, but 153s, 156s, 158s and 170s could be seen. From 2007, with London Midland it was mainly 150s, until 2011 when the 172s took over, but 170s and 153s could also be seen, indeed before Covid during the West Midlands Trains era, a 170 + 153 combo was diagrammed for that line.
Hope that info helps.