Yes ghost shrimp should be fine with those species ... The only ? might be the rasboras. Just ensure you provide plenty of hiding places via plants, DW and rocks.
Shrimp are great, I started with ghost shrimp in a 10gal ... Now I also have Amano, Bamboo and an RCS ... Maybe ... Haven't seen it in a couple of weeks.
In a 55gal you can start with dozens upon dozens ... But maybe start with 20. If most survive the adjustment, then you can consider some more. In a 55gal ghost shrimp may all but disappear on you, especially if it's planted with decor
But you'll catch them scampering around.
Personally, in a 55gal with that stock, consider a few Amano shrimp as well ... More pricey than ghosts, They're algae eaters that'll also scavenge, and they're bigger than Ghosts. Once your tank is well established .. Give it a few more months ... then look at bamboo shrimp.