Unlike google trends there is any other website or tools which provides free search to find the hot keywords i mean to list my website in google page i want to add hot keywords to the title i have know about buzzsumo and google trends but any other seo tools which provide for free
Try ubbersuggest I just discovered it recently from another forum. It doesn't provide how many searches a keyword/s get/s but it can give you an idea on what people usually searches for.
For searching keywords, you can use the Cognitive SEO tool or you can also use the Google keywords tool. These are authoritative tools that will provide you with the right keywords to work on.
When you don’t know a niche well enough, feel free to search in Google for some ideas. Something as simple as “most popular [insert keyword]” will give you tons of new ideas to plug into the Google Keyword Planner.
Apart from Ubersuggest, you could also look at other aspects like Google auto suggest option & related searches that shows up in the bottom of the website.
Google adwords keyword tool is the best for searching. Besides you can search in Google Trends and make a Google alert for those "Keywords"