Hey Adam!
You can look into the FPC (Fruity Pad Controller).
https://www.image-line.com/fl-studio-learning/fl-studio-online-manual/html/plugins/FPC.htm
I currently don't have any training on it, but you can load stock drum kits into the FPC with the top-left arrow of the plugin, highlight Presets, then you'll see a bunch of different drum kit styles.
If you have your MIDI Files loaded into the Piano Roll, you can switch between drum kits in the FPC to play around with it that way!
(Or you can also drag in your own drum samples, too).
The FPC is very powerful for layering, but a little tricky to get up and running, but I think that'd be a good approach for your question here.
