If it were me, I would try out a loose Myanmar/Lake Inle inspired stocking that I have been wanting to do for years. For schooling/shoaling fish, I would do 20 or so Sawbwa resplendens (Asian rummynose) and 40 or so Danio erythromicron (dwarf emerald rasbora). On the bottom, I would do 20 or so Rosy Loaches. They all like the same water parameters, are shrimp friendly, go really well in heavily planted tanks, and would give you a lot of color and activity.