Which quantum-resistant cryptos could skyrocket if Bitcoin's security gets compromised?

If Bitcoin's security were to be compromised due to quantum computing threats, several quantum-resistant cryptocurrencies could potentially gain traction as alternatives. Here are some options to consider:

1. **Quantum Resistant Ledger (QRL)**: QRL is designed to be quantum-resistant from the outset, using hash-based digital signatures that are resistant to quantum attacks.
2. **IOTA**: IOTA's Tangle technology incorporates quantum-resistant features through the use of Winternitz One-Time Signatures.
3. **Nexus (NXS)**: Nexus aims to integrate a quantum-resistant 3D blockchain with communication satellites, promising a secure and decentralized network.
4. **Mochimo**: Mochimo uses the EU’s PQCryptos approved WOTS+, which is the Winternitz signature scheme, gaining popularity for its quantum-resistant properties.
5. **Cardano**: Cardano is another cryptocurrency that is being developed with quantum resistance in mind, although it is not yet quantum-resistant.

These cryptocurrencies are either inherently designed to be resistant to quantum attacks or are actively working to integrate post-quantum cryptography to ensure their security in the face of advancing quantum computing technology. If Bitcoin were to become compromised due to quantum threats, these quantum-resistant alternatives could see increased adoption and investment. However, it's important to note that the quantum computing threat is still largely theoretical, and the development and adoption of quantum-resistant cryptocurrencies are ongoing processes.