Alternate for Shodan.io #OSINT

All fellow hackers and learners are crazy about getting full access of Shodan.io , but it is paid, and for us, hackers from 3rd world countries, not possible to fund that dream from pocket money as student.

So, let me list few alternates search engines for your OSINT purpose. Together they are better and powerful enough.

Will update more if I find any. Hope it helps.