I assume you mean the non avian ones, so I guess birds will not be taken as answers here

In that case I will go with the smaller ones that could deal with all the extinction events from then to now, like small troodontids and dromaeosaurids. Eventually I’m sure they’d develop into new things unlike the way we know them today so they could still be out there on other islands or something and we wouldn’t even know because they don’t resemble the traditional Dino shape

Agreed

That'd be terrifying to see these things jumping out at you while you're wandering a forest

Kapro

Maybe some non-avians survived and evolved into some birds. Cassowaries, for example.