I wonder if you can use a rhyme to help people. Sander, rhymes with wander (for Americans). Björk inspired me with her own brilliant rhyming word. I'll leave it up to you to discover what she uses: https://youtu.be/AGtMv-EQp20

For my own name, Ambroos (Dutch as well), I've yet to find a good English rhyming word. I've just settled with telling people to pronounce it as Ambrose. It's better than people turning it into Am-bruce. For TTS I sometimes use Ahmbrohs.