The top pic appears to be a Squash Bug, a bad guy. see pics below. Look for their cluster of amber colored eggs on the leaves:

https://www.google.com/search?q=squash+bug&sxsrf=ALiCzsaOiF-BLdTR90HE0I21dGGirz32zg:1659628227469&source=lnms&tbm=isch&sa=X&ved=2ahUKEwii_9P3xK35AhU8EmIAHX2rCEQQ_AUoAXoECAIQAw

The other 2 are new to me and may not be local here.

#2 looks to be a couple of red soldier beetles, Rhagonycha fulva. They're an introduced species in North America, but are considered to be beneficial in gardens as they consume aphids (along with nectar and pollen). https://en.wikipedia.org/wiki/Rhagonycha_fulva

#3 is Leptoglossus occidentalis (Western conifer seed bug). It's not really a garden pest - it mainly consumes conifer seeds and cones, but it can affect the seed crop if it spreads in areas of dense coniferous forest: https://extension.psu.edu/western-conifer-seed-bug

I agree with @vgkg Z-7 Va about #1 - squash bug. VERY damaging to squash plants, as they multiply rapidly. Look for & squish their egg clusters (usually on leaf bottoms or stems) and the armies of grayish nymphs which hatch from them. There may be more adults than you think; they hide in dead leaves, or where leaves touch the ground. They can be killed at all stages by a soap spray (I use insecticidal soap and 50/50 water & rubbing alcohol in a spray bottle. Easy to kill individuals, but hard to eradicate unless the first bugs & their eggs are detected & killed promptly. Squash bugs killed all my squashes last year, then move to cucumbers once the squashes were all dead. :-(