SOLO.... a quite hectic but extremely rewarding activity. Never happened to do Solo travelling here in Pakistan...But in this context my first Solo trip was from China(may 2018) which is partially official where I visited Shanghai, Wuxi, Huangshan, Tongli water town.
Then a 10 days tour to Spain/Portugal, France in June 2019. and Finally a Grand Solo tour to Schengen in which cover most of the Shengen area in three weeks.
As per me while solo traveling you are more flexible to plan your activities but if you have a companion who match with your frequency/Time frame etc then Group travelling will far better.