Some products that could be seen as missing in the cryptocurrency space:

User-friendly wallets: While there have been significant improvements in the usability of cryptocurrency wallets, many users still find them difficult to use. A wallet that is both secure and user-friendly could be in demand.

Decentralized exchanges with high liquidity: Decentralized exchanges are still in the early stages of development and suffer from low liquidity. A decentralized exchange with high liquidity could be a valuable addition to the cryptocurrency market.

Stablecoins with greater stability: Stablecoins have become increasingly popular in recent years, but many have experienced fluctuations in their value. Stablecoins that can provide greater stability could be in demand.

Easy-to-use, non-custodial trading tools: While there are a number of cryptocurrency trading tools available, many are complicated and difficult to use. A simple, user-friendly, and non-custodial trading tool could be in demand.

Crypto debit cards: While there are a number of cryptocurrency debit cards available, they are not widely accepted and can be difficult to use. A crypto debit card that is widely accepted and easy to use could be in demand.

These are some products that could be seen as missing in the cryptocurrency space. The industry is rapidly evolving, so it's possible that new solutions will emerge to address these gaps.