From my understanding of english this is how I broke the names down.
Neimi: Nae-i-mee, like how the name is pronounced
Colm: pronounced like coal but ended with an m
Artur: Arthur but without the th, sounding similar to Archer
Innes: In-nez. That's how it's pronounced everywhere else in Europe.
Syrene: Think Siren but with reen insteadn of en. Si-reen. Like Irene.
Gerik: Gair-rick
Ewan: Ew-wen
L'Arachel: El A-rashell
Dozla: Doz-la
Saleh: Sa-lay
Rennac: Ren-ack
Duessel: Dew-suhl
Knoll: Nol
Lyon: Lee-awn like the saint.
Caellach: Kay-lick
Riev: Reev
Renais: Ren-a-is like in Dais
Jehanna: Je-ha-na
Rausten: Raw-sten
Ephraim: Ef-ram or Ef-ray-im depending on how you interpret raim, technically both being acceptable.