Premiere isn’t going to give you many tools here.
In After Effects, you have the clone stamp tool (Pretty much the same as Photoshop), that will allow you to duplicate surroundings.
That would be a great first pass. With time, you can pretty much cover up anything,
If the camera moves, that’s a bit more complicated.
Vince Becquiot
Indigo Live | Kaptis Media
San Francisco Bay Area