I definitely recommend KOTOR 1 (and 2) to you, if you haven't played them, unlike ME1 they do play just fine on XB1 and XB1 X backwards compatibility, or you can get them on PC and mod them. Though I do wish that EA would remake them as well.
I actually own them both on GOG, PC. :P It's just that I haven't had the time to play them. I also played ME1 on PC, and while performance wasn't great IIRC, I don't think it was too bad.
It's strange, EA is well known to be a greedy publisher, but while every other publisher has been tossing out remasters, remakes, and straight up ports of earlier gen games recently, EA hasn't been. I feel like a Mass Effect trilogy Remaster/Remake collection and KOTOR 1 and 2 Remaster/Remake collection would basically print money, you'd think EA would be all up on that action, but instead they just keep tossing GaaS games with lootboxes at us instead, sigh.
Maybe their GaaS strategy is what keeps the remakes away. If you could get games in a subscription, it might be harder to sell them separately as well.