Larian Studios Forums Baldur's Gate III Baldur's Gate III - Build Discussion Multiclassing -> what class to pick first?

I know alot about game mechanic and multiclassing aready through videos, but nowhere i can find a description how to exactly spot what advantages / disadvantages i have for example for a sorlock build if i first start with sorcerer or if i first start with warlock. Don't answer on this specific build, i would like to get a reference in general, the more detailed the better (help pages, videos, whatever).
Would be really helpful.