Trial versions of these large sample type VSTs
Due to the size of the samples it would take some time to download, even with a really fast broadband connection (32 GB for the full Colossus) and so it’s unlikely.
Colossus is a good general purpose VST that covers most genres, (There’s something in there for everybody) however if you require some specific types of sound then choose the VSTs that cover it.
Goliath adds a further 8 GB of more specialised sounds (See list on the web site) and so will probably suit more people that like western music rather then Oriental or Asian etc.
Like any sound, in the end it’s down to personal preference.
Hope this helps

Bill