If you're looking for the best cryptocurrencies under $10, here are some popular options to consider:

XRP (XRP) - Known for its fast transaction speeds and low fees, XRP is often used for cross-border payments.

Dogecoin (DOGE) - Originally a meme coin, Dogecoin has gained significant popularity and community support, making it a notable option in the crypto market.

Cardano (ADA) - With a strong focus on sustainability and scalability, Cardano has become a popular choice for developers and investors alike. Its recent upgrades aim to enhance processing speeds and functionality.

Polygon (MATIC) - As a layer-two scaling solution for Ethereum, Polygon aims to improve transaction speeds and reduce costs for decentralized applications. It has strong backing and a promising future.

Tron (TRX) - Known for its high transaction speeds and scalability, Tron is a rapidly growing blockchain that supports a variety of applications, including gaming and entertainment.

Stellar (XLM) - Designed for fast and low-cost transactions, Stellar focuses on connecting financial institutions and facilitating cross-border payments.

Metacade (MCADE) - A newer entry in the market, Metacade is tied to a gaming platform and aims to integrate blockchain technology into the gaming industry.

NEAR Protocol (NEAR) - A layer-one blockchain that emphasizes community operation and high transaction speeds, NEAR is gaining traction with partnerships and technological advancements.

Wall Street Memes (WSM) - A meme coin that has garnered attention for its community-driven approach and significant fundraising efforts.

Avalanche (AVAX) - While it may fluctuate around the $10 mark, Avalanche is known for its high throughput and low latency, making it a strong contender in the DeFi space.

When considering investments in cryptocurrencies, it's essential to conduct thorough research and assess your risk tolerance, as the crypto market can be highly volatile.