Investing $100 in new coins with the aim to double your profit is a daring strategy! To maximize your chances of success, follow these steps:

1. **Research**: Start by exploring newly listed coins on established exchanges such as Binance, Coinbase, or Kraken. Evaluate:

- Project objectives and potential impact

- Team expertise and credibility

- Market demand and competition

- Tokenomics and supply metrics

2. **Select Promising Coins**: Focus on coins with robust fundamentals, innovative technology, and a growing community.

3. **Diversify**: Allocate your $100 across 2-3 different coins to spread risk.

4. **Set Realistic Targets**: Define a feasible price increase (e.g., 50-100%) as your goal to double your initial investment.

5. **Timing**: Consider investing during market downturns, corrections, or around significant events like coin listings or partnership announcements.

6. **Stay Updated**: Keep a close watch on market trends, news updates, and developments related to the coins you've invested in.

7. **Be Ready to Act**: Once your target price is achieved, be prepared to sell to secure your profits.

Popular platforms for discovering new coins include CoinMarketCap, CoinGecko, CryptoSlate, and Coindesk. Remember, cryptocurrency investments involve risks, and success is not guaranteed. Never invest more than you can afford to lose.

Keep in mind that this information is for educational purposes only and should not be considered as investment advice. Conduct your own research and assess your risk tolerance before making any investment decisions.