I think Kadena and bitcoin cash will be more profitable than other altcoins. My suggestion is to mine Bitcoin as much as possible.
Eg:
1. Kadena
2. Bitcoin Cash
3. Iron Fish
4. Horizen
Your suggestion of mining Bitcoin is still going to be the best option but but, that is you have a real passion about mining since it wasn't easy and it isn't cheap. There were lots of stuffs to be considered first like location, space, weather conditions in the area and so on.. before one can effectively make Bitcoin mining a somewhat profitable activity.
Sir, i am also new in Bitcoin actually still i didn't started but i'm interested in mining. If you could share some ideas in details with me like as, how much money i need to buy equipments (hardware/software), and weather and space which you said that.