Sounds
Sound differences, homophones, intonation & stress
Perfect pronunciations exercises | Learner's Dictionary (learnersdictionary.com)
Audio Examples (The International Phonetic Alphabet)
The International Phonetic Alphabet - Audio Illustrations (uvic.ca)
Animation of articulatory processes; speech sounds of American English
Videos, graphics, and lots more
https://www.englishcentral.com/courses?goalID=8&pageSize=20&sortBy=4
Minimal pairs (British pronunciation)
Ship or Sheep : minimal pair ESL pronunciation practice - free online
Rachel’s English: Vowel Sound playlist
/l/ (“L”)
General sounds
Oral English assessments and ESL speaking English activities
Introduction to Articulatory Phonetics - Vowels
Introduction to Articulatory Phonetics (Vowels) - YouTube
Introduction to Articulatory Phonetics - Consonants
Introduction to Articulatory Phonetics (Consonants) - YouTube