There's alot of services, for example, u can take:
106 (Bt Batok - Serangoon) via Orchard Rd/Little India/Botanical
Gdns
061 (Bt Batok - Eunos) via Geylang, Chinatown, HarbourFront,
Holland Village (very long route)
067 (CCK - Tampines) via Little India, Geylang, Upp Bt Timah (very
long route also)
You can also try taking buses from City.
Most of the Bendy Buses doesn't go to very scenic places, but some
of them have long routes just nice for you to enjoy the
comfort.
Enjoy your ride!!