Is there an all new charging port I can buy for this device?

Hi,

You can replace the charge port daughter board but you still need the tools and expertise to open the phone to do it.

Here’s a link to the ifixit LG G7 ThinQ Teardown guide.

While it is not a repair video it shows how to open the phone and also the removal of the daughterboard.

Here’s a link to just one supplier of the replacement part. It is only shown to give an idea of the cost of the part and what it looks like. There may be other suppliers that suit you better. Just search for LG G7 ThinQ charge port daughter board