As for SBST I would say
14,22,24,25,27,31,51,60,76,86,98,99,139,143
161,166,168,170,174,185,196,198,222,240,291,334,358
SMRT:75,169,176,189,851,854,911,963,969
You sure 185 is good. It is still crowded during non-peak
periods sometimes, but of course there will be students taking this
route, so it may be packed from afternoon onwards.