Hi gnba77,
Thanks for contacting Apple Support Communities!
We understand that you'd like to connect multiple microphones to your iPad to use with Zoom.
The iPad offers support for Beats and AirPods which would allow you to connect two sets of headphones to share audio. You can learn more about how to set up two sets of headphones here: Share audio with AirPods or Beats headphones - Apple Support
"Compatible iPhone, iPad, and iPod touch models
- iPhone 8 and later
- iPad Pro 12.9-inch (2nd generation) and later
- iPad Pro 11-inch
- iPad Pro 10.5-inch
- iPad Air (3rd generation) and later
- iPad mini (5th generation) and later
- iPad (5th generation) and later
- iPod touch (7th generation)
Find out which iPhone, iPad, or iPod model you have.
Compatible headphone models
- AirPods Max
- AirPods Pro (1st generation) and later
- AirPods (1st generation) and later
- Powerbeats
- Solo Pro
- Powerbeats Pro
- Powerbeats3 Wireless
- Beats Solo3 Wireless
- Beats Studio3 Wireless
- BeatsX
- Beats Flex
- Beats Fit Pro"
Since Zoom isn't developed by Apple, you may also check with the developers to help determine if there are any other options within the app itself. You can reference this article if you need help to locate their contact information: How to contact an app developer - Apple Support
"Contact the developer of an iOS, iPadOS, or watchOS app
- Open the App Store on your iPhone or iPad.
- Search for the app, then tap it. If you can't find it, tap the account button
or your photo at the top of the screen, tap Purchased, tap "Not on this [device]," then tap the app. - The app's product page appears. Scroll to the Ratings & Reviews section, then tap App Support. If you don't see App Support, make sure that you're signed in with the correct Apple ID."
Take care!