Streaming from my Ipad to my Homepod and Appletv

Hi everyone,

Here's what I'd like to do.

My ipad is connected to an amp and speakers through the headphone jack.

What I'd like to do is to stream at the same time to my homepod and appletv, as well as play to the amp. But under airplay 2, once I select an airplay 2 device, the earphone jack shuts off.

Any idea how I can play 2 all three devices? Thanks!