Walikum Assalam,
Brother I am using studds smk and ls2. Never used a steel bird but my friends have it. Studds and Steel bird both are equally good however studds have better padding.
For anti fog with helmet in your range is quiet hard to find. I cheapest helmet with anitfog compatibility is LS2 Rapid which will cost you Rs 10,000 (i have made a video on it) and still you have to buy antifog sheild which will further dent you 4000 rupees. If you are going to spend this much I would suggest buy a LS2 helmet which already comes with antifog sheet they start from 13000 plus.
Second option is buy antifog sheets from Aliexpress but then you have to check the size and compatibility of your helmet.
There are certain tricks which can be applied but that need patience and practice. I will attach a video on this in next comment