In general, you don't need to provide a reader with how a name or word is pronounced. However, there's a few times where I've found it useful to do to help make a point. In Odd Man in College I have a scene where I show a difference in how a name is said and written to make a point about localised accents:
They shake hands and the man says, "I'm Daniel Reeshard and this is Angelica Dubois." Lyn notices the paperwork in his lap says Daniel Richard, so he figures it must be a local pronunciation thing.
I find having someone say it with the phonetic variant is the best way to provide such information. However, way in the past I did use the following method:
The Amir (pronounced a-mear) Clan has ruled Berant since the sixth century AD / CE. For over a thousand years they're the premier clan in the Amiri tribe (pronounced a-mear-e) and the largest clan in the country. The crown goes to the eldest male of the senior Amir line, usually the King's eldest son, unless an Amir Clan Council rules that person ineligible, which is a very rare event.
Born Gerald Herbert Mannheim on 1st March, 1942, the son of a US construction engineer working for a French company in Berana and a Berant woman of the Ber Clan (pronounced bear).
The Kotar Plain stretches from the Amir Mountains in the north to the Darunch Mountains (pronounced da-roonch) in the south. Both mountain ranges run from the coast to the Burran Mountains in the west. Both the Darunch and Amir Mountains are slightly curved with a southern bulge in the centre. All of the ranges have heavy forests at their bases with tropical jungle covering the top third of them. They all have steep slopes and sheer cliffs abound throughout the mountains.
Historically two tribes fought over control of the Kotar Plain for centuries. Such good grain growing lands are rare because the mountainous tropical forests are the norm. The Amira, originally a sub-tribe of the Amiri, had settled the northern half of the plain by spreading out from the Amir Mountains. The Darunchi (pronounced da-roonch-ee) who settled the Darunch Mountains didn't settle the plain at all as they lived only in the mountains. Eventually the Amira crossed the river and spread out across the southern half of the plain. They lived on the plain for several generations before coming into contact with the Darunchi.