I'm not sure if you are looking for a 'correct' answer, so I'll just answer what I think.
I would guess that most people when listening to slow and soothing music would feel calm, emotional, happy, thoughtful, etc.
Not exactly emotional responses, but some might feel tired, or relaxed.
Answer:
Honestly, the way to get collabs is posting your music everywhere. Anywhere with a large amount of viewers active on it would be great for you. Through all of it, remember that every single star rapper was in your exact place. They grinded their way up to the top and you have to do the same. I wish you the best of luck. When I see you on the top one day, I'll be proud, not goona lie.
Explanation:
I have a YT with about 215 subscribers (I know it's not much), but what's your rapper name so I can shout you out? Also, if you want I can use your raps as backround music for my videos (I do edits.)
It's completely up to you.
Form- can be a 3d shape, geometric organic for example a circle can become a sphere, a square a cube and so on and so on