There are lots of altcoins the market but a few of them are worth for investment. Altcoins with good Marketcap should be given priority at first. Matic, atom, aptos, sui and lots of altcoins are good to buy. Besides if you are looking for new coins then jup, Manta, Pixel, Strk Listed on binance recently. You should check these out. As these are new altcoins, so there will be high possibility that some of these altcoins will pump a lot in future.
Among the many alt coins in the market, the top coins are the best for me to invest in. Among the altcoins with good marketcap, I would prioritize Ethereum, BNB, Solana coins first because the coins have pumped quite well during the Bitcoin bullish moment. Hopefully after the Bitcoin halving, the value of the coins will increase further. Investing in Matic, Atom, Aptos, Sui coins is a good decision. But many new coins show promise in bitcoin bullish time, if like you said investing in new coins like jup, manta, pixel, strk coins i think risk more money. Coins may promise high returns but I think the best option is to invest in top coins.