HELP me stock my 55 gallon

[Fishninja]

Hi I could really use some help stocking my 55 gallon.

I have 6 tiger barbs and an albino rainbow shark.

I would like to put in a white ghost crayfish

Kulhi loaches

And either polka-dot-loaches or yoyo loaches

If someone could tell me how many loaches is appropriate or if you have suggestions please help!!!