I would replace the charge port and the small coaxial antennas that attach to the charge port. Just make sure you order the right variants according to your model number. I’ve seen customers and other repair shops replace their ports with the wrong variant resulting in cellular issues although the most common symptom was it would say “No SIM”.
Typically liquid damage needs to be addressed immediately as letting it sit to dry won’t help. It allows the water to sit and cause short circuits between components. Although the screen doesn’t work, it should still be able to power on without the screen attached. I would start by taking the board out and soaking it in 99% isopropyl alcohol for about an hour and document any corrosion you find. After it has been documented scrub it with a toothbrush and let it sit to dry for a few hours. At the very least you might be able to recover data but don’t expect the phone to be fully functional. Liquid damage is like cancer. You may spot it in one spot, clean it, and get it to work, but it can show up in other spots no matter how thorough you are. If it does come back to life, get your stuff backed up ASAP and anticipate getting a replacement.
The only real way to tell is to open the phone or have a close look at the fitment. While we do use aftermarket or “fake” screens, we do like to back them up with some kind of warranty if there’s an issue.
You most likely damaged that display. Order a new one. And a little pro tip here for ya. Make sure you clean the old adhesive residue off of the frame with some acetone and a q-tip. It’ll help the new screen adhesive stick better.
Samsung soldered the port onto the main board rather than put it on a separate daughter board in the S1o lineup, leaving DIY repair out of the question but a skill tech in micro soldering can fix it. I would check your local area for shops that specialize in micro soldering. It can run a little pricey (roughly $100-$200). Alternatively if you have another phone you can transfer the data that way. If it’s another Samsung device, you can use Samsung Smart Switch and a wifi network to transfer everything quite easily.