Is the time period required monthly or annually?
For yearly terms, Ethereum, BNB, Solana, Ripple, Monero.
You can choose these five altcoins as the altcoins that you will invest in until the bull market. Top coin picks on marketcap list.

Types of altcoins and tokens that are capable of bigger pumps, visit coingecko on Top Gainers and Top Losers so it's easy for you to find out. This is not advice that requires you to do it.
My suggestion, how about switching to Bitcoin investment instead of using money for altcoin investment.