I think if you have extra money, it's best to choose coins that are in the top 10 crypto markets such as Bitcoin and Ethereum, because these two coins have huge potential and popularity in the crypto market, and I think BTC and ETH are two coins that can gives a sense of security to the holder, and of course you will get big profits if invested in the long term.
I think this is the basis of initial investments in crypto. These are the most liquid assets at the moment and they should be in the portfolio of everyone who invests in cryptocurrency.But there is another type of modern investors who buy various memtokens for large sums because for them it is more of a lottery than investment.
Different kind of investors who are trying to make a good use of their opportunity, but like what you mentioned both BTC and ETH if long term wise, those two projects can bring that decent amount of profits, unlike with meme coins where risk is really high, a single mistake can cause your entire investment, there's no turning back once the developers decide to abandon the project, unlike with top projects there are communities that supporting the team and with that, developers will continue to proceed and keep bringing update to attract more supporters and holders.
Before taking your way it's always a must to assess the market and start placing small portion of your initial capital, learn and
do not stop to keep adding knowledge in the industry that you choose to take your chances to succeed.