You may want to try some more functional languages to complement your experience: Reason/OCaml/F#/Haskel/Elm/PureScript or even the more OO ones that copy some features over: Rust or Kotlin.
React is not a language. TypeScript is very close to PHP, both in imperativeness, in OO-ness, in did-not-initially-support-it-but-sometimes-added-it-later-but-now-its-a-mess-ness, in BW-compatible-ness, in quirkiness.
I’ve (informally) taught Haskell and I’ve used Elm/Erlang/Elixir/etc. I absolutely love functional programming and definitely regard it as the “ideal future”, but it’s not ready today. Especially the ecosystem.
I know React is not a language, but I listed the whole stack to compare it to IHP, which seems to try to combine everything. Which is good! I’d love a Django/RoR esque Haskell platform.
React is not a language. TypeScript is very close to PHP, both in imperativeness, in OO-ness, in did-not-initially-support-it-but-sometimes-added-it-later-but-now-its-a-mess-ness, in BW-compatible-ness, in quirkiness.