But I would stick to Bitcoin if I were you.
You can diversify if you want to and buy as much as you can but everyone should put bitcoin at their priority before buying anything else.
the main crypto of this market and the rest would be just depending on users or investors preference since there are still people who are really very optimistic toward some altcoins in the market
which i cant really blame them off considering on how high those coins had able to progress out then its no surprise that they would really be having that impression.
But it's still always better to be at the stable side by owning bitcoin too.