Brother i have Margalla and i have used Philips Xtremevision 100%, Narva Range Power Silver and Osram night breaker unlimited.
I have also used Koito Japan 90w/100 Bulbs. They r the cheapest upgrade, a set would cost around 700 Rs and lasts a life time too. also easily available in local market.
Narva range power was just bluish no extra visibility.
Philips xtreme vision 100% had polarized more clear visibillity but no extra illumination.
Osram night breaker unlimited 120% have proved to be the best so far. more illumination and better visibility at night.
for all of the above mentioned bulbs none fused over couple of years used (if the wiring of the car has no issues). i am still using Osram night breaker unlimited and they are working perfectly fine AL HAMD U LILLAH.
now currently available best halogen bulbs on aliexpress are philips rally vision 150% and osram night breaker laser 150%. u can choose any of these.
hope this clarifies.