Law to IB

What’s the best strategy for a Law Grad (Germany) to pivot into finance ?

I graduated 2021 and I interned in M&A Law firms and financial market regulatory.

In your opinion should I either do an US LLM + NYC bar and pivot into IB after few years of Biglaw practice ?

Or should I try to do another undergrad in finance and then do the transition ? Alternatively I can do an MBA, but it appears to me as the most inconvenient option with all time and costs included.

Thanks a lot !