A short, curated guide — not an automatic related dump. Figures come from SubMouse's safe-for-work directory when we have them.
r/strength_training (about 5.0M members, directory rank #178) covers bodybuilding, powerlifting, weightlifting, strongman, kettlebells and bodyweight training. Bodybuilding aesthetics, CrossFit sport and beginner Q&A each have clearer specialty homes.
Stay on strength_training for multi-discipline strength sports talk. Use bodybuilding for physique-focused training, crossfit for CrossFit methodology/sport, beginnerfitness for novice questions, and Fitness for general fitness goals.
r/strength_training — Strength Training
Discussion of all topics related to strength training: Bodybuilding, powerlifting, weightlifting, strongman, kettlebells, bodyweight training.
Bodybuilding - everybody wants to be a bodybuilder
When to choose it: Physique-focused bodybuilding training and culture.
Why it is here: Listed as related (about 3.0M members, rank #372).
How it differs from r/strength_training: Bodybuilding specialty versus multi-discipline strength_training.
CrossFit on reddit
When to choose it: CrossFit methodology, boxes and competitions.
Why it is here: Listed as related (about 1.8M members, rank #596).
How it differs from r/strength_training: CrossFit brand/sport versus general strength sports.
Beginner Fitness
When to choose it: Beginner fitness questions in a safer novice space.
Why it is here: Listed as related (about 3.0M members, rank #359).
How it differs from r/strength_training: Novice Q&A versus strength sports discussion.
Fitness
When to choose it: General physical fitness goals beyond strength sports alone.
Why it is here: Large Fitness hub (about 12.6M members, rank #69).
How it differs from r/strength_training: General Fitness versus strength-sports focus.
Run the automatic finder for r/strength_training (results are matched from our directory; that page is not indexed): Find related to r/strength_training.
Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and culture claims appear only when we have them — missing fields stay n/a. Directory rank is listing order. Communities outside the published Top 100 open in the info tool instead of a full community page. Guide updated 2026-11-07.