Shallan is Sha-lawn (rhymes with salon)
Jasnah is Yaz-nuh
Kaladin is Kal-a-din (rhymes with paladin)
Sarene is Sah-reen
Dalinar is Dal-eh-nar
Adolin is Ah-doh-lin
Renarin is Reh-nar-in
Elhokar is Ell-o-car
Vin is Vin
Kelsier is Kel-si-er (but said very fast so it’s more like Kel-seyr)
Sazed used to be one syllable for me, but I changed my ways and called him Say-zed now
Adonalsium is Add-o-nal-zee-um