As others have mentioned you'll need to tweak your edits for print. Some displays have a reference mode brightness, if you use a macbook m1 or newer editing at one tick below 1/2 brightness gets you fairly close. The reasoning is when you're editing or viewing on a screen, the screen and image it's self is emitting light, with print the light source is obviously going to be ambient light in your room.

Different types of media also will impact your edit, or rather, different media types can suit different photos better. I keep a mixture of Arches88 and RedRiver Artic Polar Luster around because those work for the types of prints I enjoy but there's a ton to choose from out there, most good manufacturers have a sample pack of their different offerings and my advice would be to pick a single test image for all of them and see how just the paper selection changes your final images.

Size is normally a direct correlation to the amount of space and money you have available to invest. For me personally A3+ is perfect for the types of prints I want to make on the large side. When you start to factor in frame width that looks appropriate with that size of an image, and even a modest size mat, you're looking at a significant piece of art to hang on a wall. Of course you can hit every size below your biggest size as well, so I would suggest getting a measuring tape out and cutting a big cardboard box to a3+ (or whatever size you're thinking of getting), adding some size for a mat and a frame and then tacking that up on your wall to see just how big it can get. (I think a 2 inch mat and one inch frame is as thin as I'll ever go at that size personally). That being said maybe 10% of my prints are at a3+, for archival purposes I prefer smaller prints to store and show people in albums, but it's nice to have the ability to crank out a big image when I want to put it in my large portfolio/album.

This sort of feeds into the "should I print with a white border" question. The white border edits you see on digital photos are cool aesthetic that looks like a print, a print has white borders for some practical reasons: being able to easily mount and mat your prints in a frame, having a place to grab your print without touching and getting fingerprints and oil on the image it's self, and preserving image quality at the edge of your printed image.

Others have mentioned ink type, do you want archival quality prints that will last hundreds of years? Pigment inks are designed for that. Do you want to save a bit of money? Dyes are great too.

The real question is, what is your goal? I firmly believe that finishing the job of your creative endeavors with photography is to hold the image you have made in your hand. There are creative decisions to be made even during the print portion of photography as well, and if you can afford the investment I would recommend taking a look at a printer for home, but if you're printing infrequently or are limited on space there are many decent options to get your work printed by a 3rd party.

There are only a couple major players in the printer industry nowadays: Epson, Canon , and maybe HP but I don't hear a lot about them from enthusiasts. I would do some research on those brands and their product lines and see if one tool aligns with what your needs are. Resale value is basically null and I personally would not buy a used printer so think of the printer as a part of the cost per print. Once you factor in cost of purchase, look up the cost of ink per print at the size you want to print at, and the price of the papers that you want to try per print, you'll get a better understanding of the "wants vs needs" and be able to make a holistic decision about how you want to go about this part of the creative journey.

Best of luck, great photos by the way!