Lian Li 207M Case

Hey guys, 1st time PC builder here, so bear with me. I’m looking to build in the subject case, but have seen some videos that caused some concern with the front mounting PSU configuration of this case, and the real estate for the cabling in the rear. I would like to have flat power cabling for this reason. Any suggestions on a 850W PSU that seats will in the 207 case with flat cabling? Open to other suggestions/lessons learned when building in this case as well. Thanks in advance!