Stocking question for 30 gallon tank?

My tank currently has 4 male guppies 4 zebra danios, two of them are long fin, 2 neon tetras, I know I need more neons but when ever I get more they always die, and a pleco. originally I wanted a super colorful fun to watch tank, but I'm lost in what else will fit

I like this set up, will this work, if not what could I get rid of.



-One small Pleco (Golden nugget, zebra or bristole nose)

-Twelve Neon Tetra's/Cardinal Tetra's.

-Six Rosy/Penguin/Bleeding heart/Glow light/Black/Lemon tetra's/Rummy nose/Black Widow tetra

-Four Platys/Guppies/Swordtails/Endler Guppies

-Two dwarf gouramis

-Ten Oto's

-Six too Eight Corydora (Bronze/Pygmy/Panda/Albino/Peppered.)Stocking question for 30 gallon tank?
If you add all those fish your going to be overcrowding your tank. So far this is what I have in my 30 gal Im looking to add more but here is an idea. I have 6 red-eyed tetras, 4 neon tetras, and 2 tiger barbs.



Suggestions:

4-6 More Neon Tetras

4 Guppies

4 Bloodfin Tetra

2 Dwarf Frogs

3 Corydora(they can be held in a group of 3 but 6 is a little better)

2 Dwarf Gouramis

I would not get oto's since they are similar to corydora not 10 anyway. I still don't know if I would add all those fish.
Whats an Oto? If you cut them out than your tank would be great because you are just on the brink of over crowding. Anyway I love your idea, it was well thought out and amazing. Note~ The Dwarfs might nip each other if they are both males so be careful. An avoid the guppies cause im not sure which tetra you are choosing. The guppies might get nipped, go with Platy's. Hope this helped :DStocking question for 30 gallon tank?
Overstocked.



4 Male Guppies



6 Zebra Danios



6 Neon Tetras



1 Dwarf Gourami



Anything else would potentially overstock your tank.
Looks good to me