@Suzan @eerko How many of the expansions have you tried? (Innovation is one of the few games that I quite enjoy, but I've tried exactly zero expansions)

@grayson @eerko All of them!

We know Echoes the best, it was the only one we had for a long time. I’d definitely recommend that one. Of the other three I think I like Cities the most.

@Suzan @eerko Ah! and that was going to be my follow up question. Thanks!
@grayson @Suzan @eerko Cities acts as a kind of “accelerant”, getting you up in the ages more quickly.
@grayson @eerko @Suzan Not OP but I am a fan of Artifacts. Low rules overhead and Compel (which is sort of a reverse Demand) adds a nice comeback mechanism when your opponent is hopelessly ahead in icons.
BGA and Yucata have the expansions so it's easy to try them online.