For me, all of those are profitable depend on how you handle it. Holdinh btc is profitable if it rise and you aqymuire it at a very low price. Short term trading or daybtrading is also effective way on how to gain more but with a higher risk than long term.
At this point I believe you should trade only short-term trading and you can see that the market is continuously adjusting and the bitcoin price after returning to the $ 8500 level has been dramatically reduced by $ 1000 and The current correction is at $ 7500. Bitcoin prices have returned to their bear market so I believe you should only invest in the short term at this time.