Will this work in a 100 gallon tank?

I have this empty 100 gallon tank and i have no idea of what to put in it. I either want a community like tetras, guppys, barbs and angelfish or a tank of African cichlids. Which one would you have and what would you have. Also how many clown loachs could i have? I know that they have to be in groups of 5. If it isn't big enough for 5, then can i have a sailfin spotted pleco? I want either one for both of these tanks.