u can ,depend on which tradition u like
theravada , mahayana or tibetan buddhism
PKS offer dharma class for beginner
Buddhist library and Buddhis fellowship also offer
then comes Amitabha Buddhist centre
for chanting like guanyin chanting ,it is incorporated with most
other practice
unless u talking abt specific guanyin chanting
u can try huayen society for chunte (emanation of guanyin),11-faced
Guanyin
practice
other centre does offer the 6 syllabus mantra practice
like Om Mani Padme Hum
if u talking abt Buddhist teaching of Guanyin ,then u have to
attend basic buddhist lesson first
do pm me if u interested to know where is huayen society