[Question] Advice on stocking my home bar

I am trying to get started with this whole cocktail mixing thing, and I need some advice on where to go next in terms of stocking my home bar. Right now I gotVodkaGinCreme de bananaBlue curacaoMalibu rumThe next time I go shopping for spirits I plan on buying three bottles, give or take, and I don't really know what I should get. Any advice would be greatly appreciated! The only thing I am actually certain that I am going to buy next is Angostura bitters, but other than that I am lost.Thanks in advance!