You'll have to share what you've tinkered with, or older games you really enjoyed, or maybe even genres you're interested in sometime.
I haven't been able to get too hands on with older comps unfortunately so it's been me kinda 'admiring from afar' if that makes sense. Emulation is a blessing, for sure, but it still can't beat the real deal. Couple of my favs are pretty common staples like the original sim city and a lotta point and clicks from the time like the Secret of Monkey island.
Biiiiig thing that super piques my interest is the demoscene, particularly for Amiga computers and a lotta misc. stuff regarding graphical art tools and creation for systems of the time period.