Which is the best bulk keyword research tool?
KeySearch, SEMrush, Term Explorer are all good ones.
In my opinion SEMrush is the best tool for any kind of keyword research.
Google keyword planner is the best free tool for high quality keyword research. Best keywords can be selected using this tool. The tool helps to provide various keyword suggestions for your domain, and selecting the right keywords will help to rank your website higher in search results.
SEMrush,
Google Keyword Planner,
Keyword Tools.io,
Buzzsumo,
Google Trends,
Ubersuggest,
KWfinder,
Wordtracker