I wanted to try and main a champion but the thought of a majority of my matches being with a single champion just sounds mind numbingly boring. There is not a single champion I enjoy enough to not get bored playing them over and over and over... especially if the champion I chose to main got significant nerfs.
then you have the problem of being unmainable witch to be honest is not a bad problem to have
Well, generally speaking you will never get tired of playing your "main". That's usually the reason someone mains a champion (as long as they are competitive enough for your level of play). If you've played every single champion and can't find one, then use how competitive that champion is as a prerequisite. If not that, then your main is whatever champion you can play the best on any given day.
once you find a champ you like well enough it gets pretty easy, or even a few champs that you cycle through
