Har is a great resource. Lucky to have him on the forum.
Jakarta is a great mango, as well as the related bombay and sunrise (surprised Har did not recommend sunrise).
As for lemon zest, I've had good success with them. This year, all 3 are loaded and haven't spotted MBBS on them yet this year (except for a few when they were bb-sized, which eventually just dropped off). The key has been fortnightly fungicide spraying. However, those who live in less humid areas or with sufficient air flow may not have any issues -- it really seems to vary by location. My LZ have also been regular producers over the past 3 years or so.