These are jam-resistant hitches that typically don't "need" a slip, arranged from smallest to BIGGEST. I will be changing this original post as replies below convince me why I should.

The list is limited to hitches that are mainly right angle pull and that clamp down close to the object. For example, the list excludes gripping hitches (e.g., Klemheist, Prusik, etc.) and adjustable hitches (e.g., Tautline, Blake, etc.).
Assume the object may be any size (e.g., tiny or huge). So, let's say more wraps around the object means a bigger hitch. Of course, that's not always true, but it's a fair rule for the purpose of being able to make this list.
- Simple - ABOK #49

It's secure for a narrow sliver of applications (e.g., the V-shaped object in the pic), but it wins the "smallest" award.
- Half

It's quick, easy, temporary, limited.
- Two Reverse Half Hitches

It's slightly smaller than than Two Half Hitches (shown below).
- Two Half Hitches

Its true calling may be as a mid-air binder.
- Gnat

Roo's discovery, it actively rejects the idea of a slip.
- Timber - ABOK# 1665

It works better than it looks like it should, and tying merely one twist is adequate for many applications.
- Clove - ABOK# 11

It obviously must be here because, well, it's the Clove.
- Groundline - ABOK#1676

You might try this instead of the Clove.
- Bag - ABOK#1674

It's often preferred over the Groundline.
- Pedigree Cow

It's not secure if it's not tight against the object or if the object is relatively large.
- Round Turn & Two Half Hitches - ABOK #1720

It's a default hitch that's perfectly adequate for many applications.
- Backhand - ABOK #1852

It's possible to tie this hitch by passing only a bight around the object.
- Girth

It's a Cow with the working end attached to the standing end.
- Vibration Proof

- Bull

This added feature on the Cow can be multiplied as many times as desired.
- Pile

It's quick if an object end is accessible, easy to untie.
- Sailor

It holds confidently in many applications, easy to untie.
- Fist

Richard Peterson's discovery, it's an improvement to the Ossel, and works adequately in surgical tubing where many hitches fail.
- Snuggle

- Boom
