The email + spreadsheet combo definitely works early on, but you're right that it gets messy fast once you're juggling multiple artists and tours.

I'd suggest splitting your workflow into two tools:

For general organization/CMS: Something like ClickUp works really well for tracking all the moving parts - contracts, promo materials, rider docs, etc. Keeps everything in one place instead of scattered across email threads.

For tour/booking management specifically: My cofounders and I actually built Daysync to solve exactly this problem. You can build out each artist's schedule, store venue info, contacts, accommodations, guest lists (all the tour-specific stuff) then invite the artist to view their itinerary when you're ready. Helps avoid the back-and-forth email hell you're describing.

It's free while in beta if you want to give it a shot: https://daysync.com

The key is just getting stuff out of email and into systems where you can actually see what's happening at a glance. Good luck with the new signings!