At this point you can probably use ChaCha8 (ChaCha20 but with 8 rounds instead of 20) seeded from the system's crng and be fine in most cases. Xorshiro is fine

At this point you can probably use ChaCha8 (ChaCha20 but with 8 rounds instead of 20) seeded from the system's crng and be fine in most cases. Xorshiro is fine is most cases but is obviously not statistically perfect.