Welcome to the Q&A Forum

Hello , first I'm sorry about the beginner's questions , I looking for niche to open online store and try to find niche that there is no bery high competition. something that I can compete in this niche . My main question is how to measure the competition for online store? I mean when I do research on main keywords for the niche store. I see the overview and the SERP Analysis ,which parameters I see as a hard competition? -lets say I take the average of "Linking RDs To Root Domain" , which numbers are ok and no very high ? -I check all the page rank and see the average of first page , how I can if average of 5-6-7 is ok or hard competition? -the sane question is Page Authority , is there is some range that I can see hard competition? If you have some articles that can help me to learn and understand that world , or some place to start there I will be happy Thank you , Mark