Click Social is able to track posts with #hashtags for public Instagram accounts.
You can search for a maximum of 30 unique #hashtags on behalf of a single Instagram Business or Creator Account within a rolling, 7-day period. Once you use a hashtag, it will count against the limit for 7 days. Subsequent searches on the same hashtag within this time frame will not count against your limit, and will not reset the initial 7-day timer.
To increase the number of unique hashtags you can connect additional Instagram Business or Creator Accounts.
Due to Instagram API limitations, third-party tools cannot track keywords or @mentions across Instagram and no personally identifiable information will be included in responses.