The airpods is nice, but maybe you can buy the 7Hz Crinacle Zero or Truthear Hola if you want a wired IEM. About the over-ear, the M50x is a great closed-back (it's not perfect, but the build quality is acceptable, and you can do some EQ on it), and the HD560s or Hifiman Ananda it's a good point to go if you want some open-backs.