Hard to tell from the picture but perhaps a peperomia.

FataMorgana

Here is a link that might be useful: peperomia

here is a second picture may not help either.

Google "Hoya plant" images and see if they match what your plant used to look like?

Not a Hoya. Was it a vine? If so not Peperomia either.

Can you give some sense of scale? How big are those leaves? Compare with images of Tradescantia, Epipremium, 'Pothos' 'Wandering Jew' ... See if any look familiar.

Normally I would not recommend repotting at this time of year but the pot seems too large for what is left. I would carefully dump this pot out, salvage the remaining pieces and plant them into an appropriate sized pot with fresh soil. I would have a sentimental attachment. If you do not hopefully it can be identified and you can purchase a new one.

Peperomia is what I thought when I saw the pics too. In insufficient light, it wouldn't be upright.

See if it matches P. orba. (Though there are a *LOT* of Peps!)