Intermediate chinese classes in the evening?

You’d think it wouldn’t be hard to find a school that can teach intermediate level chinese in the evening… after all, Taiwan is a chinese speaking country. but after all my searching… i have been unsuccessful with makin a suitable discovery.
my requirements are simple…
!)school (private lessons could work too… as long as the price is reasonable)
2)intermediate level
3)classes are in the evening (could be everyday or 3 times a week… whatever the present schedule is… i can work with it;)
4)i would prefer to study mainland chinese characters… but not too picky about this one. quite familiar with both.
so what are my chances anyone out there can enlighten me on the chinese class goldmine that awaits… wheather it be a school, group lessons, or a private tutor… i need to get this going><