Search fund accelerators and CEO-in-residence (CIR) programs

Question for the community. I’m familiar with SFA, Brydon, and Broadtree, but I know there are other accelerators and CIR-style programs out there. Which ones have you found valuable, and why? Anything you’d strongly recommend or avoid? How did the program shape your search, diligence, and transition into operating? For context, I am a supply-chain and ops leader exploring ETA. I would like to better understand where accelerators create real lift versus running a traditional or self-funded search. Would love to hear your experiences - the good, the bad, and the unexpected. Thank you in advance.