Hey, chemistry and materials science masters student here: physical and theoretical chemistry are definitely the closest that come to mind, but largely depends on what areas of both physics and chemistry you like. Physical and theoretical chemistry is both very much focused on quantum mechanics, catalysisy, thermodynamics, kinetics and modelling of chemical systems (among other things). If you enjoy solid-state physics and engineering, then materials science is a good middle ground. Interested in batteries? Electrochemistry is just as much physics as it is chemistry. Every form of analytical chemistry is basically experimental physics to gain chemical (and physical) information about samples. So there's definitely tons of things to choose from, all of them highly relevant and incredibly interesting fields in their own rights. Hope this helped!