Being Electronics and Instrumentation Engineer..which will be the best sector to work?

for me, the electronics design and R&D

operational companies like oil and gas , fertiliser,cement industry are more suitable for working for instrument and control engineer as it adds up much more challenging environment and also pays you well 

I have enjoyed working in Design Engineering. I am basically an Engineers Right hand man. I get the practical things done. He has the Ideas and I help bring those Ideas into reality. I test debug the product until it performs as Hoped

based on my experience i like instrumentation in the oil/gas field 

According to my work experience would like to work in Electronics field

According my knowledge and experience i would like to work, QHSE fIeld, Instrumentation background support and develop and help for preparation for quality and safety manual , procedure and different types of form,

Being Electronics and Instrumentation engineer leads to broad direction within the engineering industry and outside it.

Here is some few sectors listed below: Automotive industry, Electronics industry,  Production Line (Automated Process Line), Oil and gas industry, Pharmaceuticals industry...