Here is the honest answer: hashtags carry far less weight than they did, so do not over-invest in tools for them. The generators built into schedulers or apps like Flick, can suggest relevant tags and save time. But keywords in your caption and on-screen text plus strong watch time drive reach now, not a wall of tags. Use a small set of genuinely relevant hashtags, not thirty random ones, and spend the saved time on a better hook.
Hashtags matter less now
Keywords and watch time drive reach today, so do not over-invest here.
Tools help a little
Generators and scheduler features suggest tags but none of them are magic.
Use keywords too
Put real keywords in your caption and on-screen text. The algorithm reads those.
Keep the set small
A handful of relevant tags beats thirty random ones every single time.