Totally agree with you! What other asynchronous titles to you know/are playing? I only know Star Realms....
There are tons of them out there, and many of them really good.
Anything by Playdek (Twilight Struggle, Ascension, Penny Arcade, Lords of Waterdeep, Agricola, Summoner Wars, and probably some I'm forgetting).
Here are some others from other developers:
Agricola: All Creatures Big & Small
Le Havre: Inland Port
Ticket to Ride (have to be buddies with the people you invite, though, or it's almost impossible to set up async)
And a bunch of others...