Investing in altcoins can be a high-risk, high-reward endeavor. While it's impossible to guarantee 100x returns, here are five altcoins across various categories that show promising potential:

$XRP $BNB $BTC

1. *Polygon (MATIC)*: A Layer 2 scaling solution for Ethereum, offering fast and low-cost transactions.

2. *The Sandbox (SAND)*: A decentralized gaming platform that allows users to create, sell, and own digital assets.

3. *Chainlink (LINK)*: A decentralized oracle network that provides real-world data to smart contracts.

4. *Aave (AAVE)*: A decentralized lending platform that allows users to borrow and lend cryptocurrencies.

5. *Cosmos (ATOM)*: A decentralized network of independent, parallel blockchains, each powered by the Cosmos-SDK framework.

Remember, investing in cryptocurrency is a high-risk endeavor. It's essential to:

- Do your own research and consider multiple perspectives.

- Set clear investment goals and risk tolerance.

- Diversify your portfolio to minimize risk.

- Keep your investments secure with reputable wallets and exchanges.

Please consult a financial advisor before making any investment decisions.