i am not telling you to buy bitcoin. i am just saying you should do your own research. make sure to do the calculations i told you about above. here is a good tool you can use to verify what i mentioned.

then do it for short term for example choose bitcoin versus some altcoin that was getting pumped in a certain week. in that week that altcoin is a lot more profitable than bitcoin.
the problem with your question is this in my opinion, you want to long term invest in something that is not good for long term.