Fish stocking question

Hi all,

I just started keeping a fish tank and had some questions on my current stocking for my community tank, which is 30 gallons of fresh water.

I have 1 pearl gourami, 7 zebra danios, probably 20+ blue velvet shrimp, maybe 50 bladder snails, 3 mystery snails and 1 male dumbo guppy.

I wanted to add 6 albino corys as well hut fear this may be overstocking. Any advice would be appreictaed!