Short version: hashtags are a small labelling signal now, not a growth hack. Your reach is decided by how people respond to the video, not by stuffing 30 tags.
What hashtags still do
They help Instagram understand what your reel is about and can surface it in a topic or hashtag feed. That's useful context — but it's a nudge, not an engine.
What actually drives reach
The signals Instagram has named are watch time, likes per reach and sends per reach. Those are about the video. A great reel with three tags will out-reach a weak reel with thirty every time.
How many to use
A focused handful — think 3 to 8 — that genuinely describe the reel beats a wall of generic tags. Mix a couple of broad ones with a few specific, niche ones you can realistically show up in. Skip spammy giants like #love and #viral; they bury you.
Relevance over reach
A smaller, exactly-right tag you can rank in is worth more than a huge one you'll never surface in. Describe the actual content, not the audience you wish you had.
Where to put your energy instead
Spend the five minutes you'd spend hunting hashtags on a sharper first line and a tighter cut. If you want tags done fast, generate a focused set and move on — then test the reel itself on strangers, which is what actually moves reach.
Generate a focused hashtag set free, then test the reel itself on strangers.