Data recovery , please recommend repair place

Hi. I have a problem where my iPhone 6 phone won't power up. I really just want the data. The phone does not need to work after. I sent it out for repair and it came back without the baseband ic chip. I know it's expensive but can you recommend someone to program a new baseband chip and either install it in the broken phone or in another phone and then put the logic board and other chip in to retrieve the data? Again the phone does not need to work after. I just want the data. I also have another working phone you can use to put the chips in if needed. Is that something you can do? Maybe there is another way to get the data? I would be so grateful for someone to recommend a repair place.