I'm in a very similar situation, but with a military training background instead of GA, but similar hours. I'm almost 20 years out from last flight, until some GA flying recently towards a BFR. Which is dragging out due to weather and CFI availability, so wondering if it might have been more efficient to do IPC first, or in parallel.

For 91/135 opportunities, subscribe to a job board like "Climbto350.com" I've dropped a lot of resumes on postings there and received a couple of call-backs. Nothing serious, but motivational nonetheless. A couple of operations in the Winstom-Salem / Charlotte area keep re-posting the same job openings over the past few months. They would prefer an applicant that already has the type (and currency), but if you don't have to relocate, and you could promise them at least a year in the seat, they might train you in their fleet. (just speculation, I haven't talked to them...)

For at least the next six months, I'm golden-handcuffed to this desk I've been flying for almost 20 years, but if I don't start interviewing soon I'm considering self-funding a type rating in something/anything marketable (KingAir, Citation) that will demonstrate competency/currency, especially if I can use that as a carrot for any local Part 91 operator to use me for right-seat services, to be able to log better time without having to rent an airplane myself, and ultimately provide a backup plan in case I just stay in the corporate/fractional sector. I flew with an early fractional company for a little while a long time ago: the compensation and QoL falls well short of 121 (not nearly as bad now as it was back then!), but the flying itself is a lot more fun.

If you want details on those 91/135 postings in your area, PM me. They're only a few days old.

Good Luck!