Gloomhaven Helper: It helps you Gloomhaven
There are many apps and websites out there that will help you save time on setup and get the most Gloomhaven in. One I like a lot is Gloomhaven Helper. It’s available on any desktop platform that can run Java, as well as via a web interface or on Android. You set the scenario number and level and it automatically populates the correct monsters, and each round after setting the initiative level of your characters it will draw cards for each type of monster and order everyone accordingly. The app also manages expiration of status effects, elements, and lots of other little bookkeeping things that tend to get forgotten or otherwise bog down the proceedings.
It also intriguingly offers a network sync option on the non-web versions to allow clients to connect to a server and keep everything in sync, which I haven’t tried yet but sounds promising if everyone can’t see the main screen.
All of this is available free with no request for donations since it’s offered without support, but my experience has been great and I highly recommend you give it a try in your next session.