My general rule of thumb is this:
For 4k HDR under 25', a Premium High Speed HDMI cable (with the QR label of authenticity) should work fine. Premium High Speed cables are passive. Only passive cables up to 25' can be certified by HDMI.org.
For 4k HDR over 25', a hybrid fiber cable (Ruipro4k) is what is recommended. The Ruipro4k cable is active, as is most all other hybrid fiber cables. HDMI.org does not allow active cables (copper, fiber, or hybrid fiber) to be certified, at least not yet.
The only way to "future proof" your cabling is to have easy access to it or install in a conduit (with a pull string) if the installation is in-wall. Period. Connection technology always lags behind video technology so chances are you will be upgrading your cabling as you upgrade your devices. Get what works now for what you have, which is HDMI 2.0. Don't worry about HDMI 2.1 just yet, unless you want eARC or VRR, which are available with HDMI 2.0 if your device mfr designed for an upgrade path.
Other things to consider are bend radius (the Ruipro4k cable has an excellent bend radius) and to keep your connection as simple as possible. IOW, a single connection from source to sink with no adapters, extenders, wall plates, etc in-between.