1The palato-alveolar sounds include the fricatives /ʃ/ /ʒ/, and the affricates /tʃ/ /dʒ/
2*The Alveolar sounds:/t/ /d/ /s/ /z/ /n/ /l/
/l/ could be classed as an alveolar sound; it is generally known as a lateral approximant,
In standard BrE RP, /r/ is a post-alveolar approximant, but it can be rendered in other dialects as an alveolar tap, a lingual trill, an uvular trill or an uvular fricative
And what about /w/? It's a labio-velar approximant.