In my opinion, coins that are worthy and potential to invest in are Binance, Ethereum, TON Coin, Solana and Polygon (MATIC), and if you have 5k then convert your money to 1K for each altcoin, and I am very optimistic that these five altcoins can provide profit in the future.
BNB, ETH, and SOL are the safest bets in my opinion. They have already established themselves as one of the top altcoins and are often considered to be next in line with bitcoin. They also seem to exhibit a relatively stable price as of now. I would personally increase the amount I’d invest in three coins.
1k wouldn’t be my choice as I am not yet that familiar with the two other coins and therefore cannot give my opinion.
However I think this three altcoins you just mentioned happens to be the best altcoin to invest in, because they have a good potential in the future, if I'm to make selection about the best altcoin to invest in, I will rather choose ethereum reason is because it can be use for Long term holding. moreover ethereum has gain more popularity more than solona and bnb, However ethereum has proven to be the best altcoin to invest.