Watch this series of 8 pronunciation lessons from CESL. Learn about the vowels and consonants of American English.
ə
https://www.americanenglishsounds.net
CC BY NC SA
ŋ
https://www.soundsofenglish.org
ɹ
https://pronuncian.com
tʃ
https://tfcs.baruch.cuny.edu/about-tools-to-go