Makeplayingcards (makeplayingcards.com) is one of the better proxying sites, they're very consistent and not very expensive. you can use a website like MPC Autofill (mpcfill.com) to create an xml file of the cards you want printed, then take that to MPC for the printing. Mpcfill also lets you pick individual card arts for every card, or upload your own if you want, it's very convenient. I also recently started playing again, and proxying everything with cards that actually feel like magic cards has been a game changer. if I had to print everything out on printer paper and use those I imagine it would be much less fun.
e: for some reason the direct links weren't working so I just added them on their own




