Second job ideas?

[Workyticket]

I work full time as a maths teacher in a FE college. I've taught the same subject for years and now only teach 1 level (2 lessons per week repeated so barely any prep) and my marking is a well oiled machine

I'm finding it weird having my evenings free and wondered about doing a couple of hours work at home to try to pay off my mortgage (and retire) faster

Definitely NOT tutoring. I've missed the window for applying to be an exam marker
Preferably something I can do from the laptop from the settee
.
Any ideas or am I pipe dreaming that there are hours out there doing some kind of data entry / admin?