There are several keyword research tools better then google keyword planner and those, the best thing is they are also free.
Keyword Revealer
Keyword Revealer: The Ultimate Intelligence Keyword Tool
A super keyword research too, where you can sort your keywords in different ways like monthly search volume, word, CPC etc
Keyword Tool
http://keywordtool.io/
You can research your keywords in the different search engine like Bing, YouTube, App store etc. But you can't see any search volume here for the free subscription. If you want to see the search volume, my suggestion is to copy the keyword and upload it to the keyword planner.
Übersuggest
Keyword suggestion tool — Google suggest scraper — bersuggest
If you are looking for language based keyword research then this is one of the best free keyword tools. You find all the potential keywords in here. Best for local keyword research
Keyword Revealer
Keyword Revealer: The Ultimate Intelligence Keyword Tool
A super keyword research too, where you can sort your keywords in different ways like monthly search volume, word, CPC etc
Keyword Tool
http://keywordtool.io/
You can research your keywords in the different search engine like Bing, YouTube, App store etc. But you can't see any search volume here for the free subscription. If you want to see the search volume, my suggestion is to copy the keyword and upload it to the keyword planner.
Übersuggest
Keyword suggestion tool — Google suggest scraper — bersuggest
If you are looking for language based keyword research then this is one of the best free keyword tools. You find all the potential keywords in here. Best for local keyword research