Worthwhile dog training certifications?

I am a fairly experienced dog trainer who is wanting to get at least one certification under my belt, LIMA, mainly aimed at service dog training and puppy raising. Preferably longer courses, 3-12 months with a lot of instruction. Any recommendations?

I would consider spending a considerable amount of money or traveling to take the course in person IF the program is worth it, but better if there is a payment plan or loan option (not a deal breaker). Prefer to max at 5k, would consider more. TIA!!