Alternative product for sand

Inquiry
I am a resident of Gujarat, India. I intend to start a distribution business in Gujarat and for that I am on a lookout for some new products and technologies. I am interested in the following sectors : electronic goods, home appliances, solar products, portable products, recreational goods, personal transport, underwater personal vehicle, alternate product for sand in construction,etc. Apart from the above mentioned products, if there is anything new, I would be interested to know more