We assume that the best Hashtag generator is Ingramer. This service is not free, but the investment pays off in genuine engagement, following boost and free promotion tips. Hashtags will work more effectively if you combine with other promotion tools – Direct messaging, Post-planner.
Advice: regardless of what service you use to find the best hashtags, remember about the right proportion. Use no more than 2-3 popular hashtags, 6-8 average, and the rest niche hashtags for one post. After 2-4 tests, you will detect the most engagement-boosting combination – thack Instagram analytics. Don't give up and use the best service instead of the guesswork!