Hi! I'm a 2D concept artist and illustrator with experience creating props and environment assets, and your data center game sounds like a fun project. I can create top-down, stylized hard-surface assets at 128x128 (server racks, switches, cabling, etc.) as clean transparent PNGs, with consistent lighting and a colour palette that matches your game.
I'd be happy to do a small test piece to show my style, or you could visit my itchio page. Let me know more about the art style you want, how many assets you need, and your budget? You can dm me or email me (my email is in my bio, i feel awkward posting it on here soz). Thanks!