Extendable storage is usually provided via the SIM tray. Physical SIMs are being phased out which is not good news for the feature you want. Realistically, you'll still need to use USB-C for headphones or an external drive.
You can look at the Motorola Signature (2026) for an idea of the initial device which will be a successor to it. Their high end devices don't have 3.5mm audio or microSD. They have devices with those but they're nowhere near our requirements.