I have worked in a number of roles before deciding to go back to being purely a line pilot (mostly because I am a lot happier not having to deal with emails, phone calls etc at home and am therefore definitely not management pilot material!). Flight safety, ops, training, recruitment - all offer a route that is incredibly fulfilling and important, and will give you a great insight into the “bigger picture” and bring much needed operational knowledge and insight to that role. It will likely also mean you can still do some flying, but not so much that it becomes the daily grind you are obviously feeling now.
Every ops, safety, sustainability, recruitment and training department I have known has been keen on having pilots join their team. Reach out to the people who send you the “operational update” email, speak to the safety manager - maybe they need someone to help with FDM validation or to help with ASRs… have a cup of tea with the chief pilot that YOU asked for
Within an airline pilots are often very focussed on their core skillset of safely operating an aeroplane, but all too often neglect the fact that they have a skillset and deep knowledge of the operation and its challenges that is incredibly valuable to the rest of the company - and we need to be advocates for that fact.