Carrier for 16 month & 3.5 year old

Hi! My 3.5 year old still loves to be worn sometimes, especially in crowds. My almost 14 month old… not so much. I collected a ton of carriers with my first because he basically lived in carriers, while my second has kind of always resisted.

Is there a carrier I could potentially use for both of them in a month and a half when we travel? It would be nice to just bring one carrier and carry whoever needs it.

I have a Tula toddler, but my younger baby doesn’t fit into 2T yet.

Thanks 😊