Planted Aquarium 180 Gal Stocking Options

Gourami could be a good fit, their mouths are too small to damage the shrimp, they don`t tend to have a high prey drive and they mostly occupy the upper regions of the aquarium. you could pick Pearls they are one of the most peaceful trichogaster species.
Livebearers are also good, you could get a good breeding shoal of swords or mollys. Obviously Corydoras are the perfect cleanup crew for the bottom and come in lots of colors and patterns. You could get some dwarf cichlids like dwarf acaras, Kribensis, something like that?

I want to keep Geos so I kinda decided not to get shrimp in the end but I feel that geos would most likely be fine as they tend to go for plant matter and small food pieces that are in the substrate.

Fighter would be fine, they love plants and tend to do well with tankmates who aren`t fin nippers (i`m looking at you Serpae tetras)
Harlequins are great I love mine, they shoal nicely are active and colorful and always have little full bellies after feeding. Sounds like you have a nice stock there, I hear the blue rams can be more sensitive to water quality so be aware of that.

oh also the plants you are refering to are probably ludwigia, they have a pinkish purple underside to the leaves, I have 2 large greens and 2 smaller bushier reds and both have a purplish pink underside to the leaves. they grow very very quickly.

Yeah nice save there haha. Harlequins are good for shoaling I have 3 different species and they shoal together from time to time.
The peaceful gourami species like Honey gourami`s would be absolutely fine.

I submit the idea of some Congo Tetras to consider as well. Perhaps rainbow fish would be compatible for your tank too, but I am frankly unsure on their reaction towards shrimp. Someone more knowledgeable here might be able to state if I am mistaken to recommend with reserves. I like your stocking so far. It must be very serene with tetras and plants. Perhaps you could post a couple pictures of your aquarium for us?