Start by searching for the other topics just like this one created already.
There is probably 100+

Then i usually ask what is your intention.
- Profit.. NOW!!
- Long term / Investment ?
- Currency Usage.. now or later ?
- Do you want to support Crypto ?
- Combo of reasons ?

Your asking a vague question.
And it's the same as when every other person asked here before.

You might as well walk into a store and say show me something i like.