I still use the Google Keyword Planner.
I feel like a broken record responding to these threads, so I'm going to copy and paste my post from another thread about how to get search volume results back, though I'm updating some of the information.
There should be a message at the top of the Google Keyword Planner that states that you need to have an active campaign in order to see the values rather than the ranges.
This means you need to have a credit/debit card on your account and an approved campaign that is currently showing ads for keywords.
At the very minimum, you need to spend $1 on your ad campaign before you see the search volume again (a member here let me know that he called Adwords and they confirmed this).
My ad campaign has been paused for about a month now, and I can still see the search volume for keywords. I'm unsure if the data ever reverts back to data ranges.
One member here tested this with his regular Adwords account, and I tested it with my MCC and regular Adwords accounts. We both had similar experiences.
As for alternatives, either pay someone to do your keyword research, or subscribe to a service like Market Samurai, SEMrush or Longtail Pro.
https://www.blackhatworld.com/seo/alternative-to-google-keyword-planner.875866/
