I may suggest having your own research than asking people here in the community and dont rely upon them, even me. Split your money into two parts. And invest in Bitcoin into 75% of your capital as an investment and the rest is on the altcoins that you've said.
Having more capital invested into bitcoins must be a wise suggestion and going as per your idea must be good in terms of diversification principle too. Personally I will not risk 25% of capital with altcoins. Yes, I might be going only for 10% of my allocated funds for crypto investments. Because, when we are having well-defined rocksolid opportunity in the name from bitcoins, why should be risk in some other thing which is having less than 50% chances to hit our expectation levels.
In the crypto market, the top 10 altcoins were always safe when it comes to investment. But top of my priority is Bitcoin because I know this has the most have potential among all cryptos.
Do not misled by coinmarketcap ranking/listing. It is complete manipulated one to temp you to invest with them. Simply increasing the circulating volume will get them top spot on marketcap listing but the actual potential to perform well will fall drastically due to lazy team and other probable reasons.