In my past life as a recording engineer (well, I shouldn't really say past, as I still have plans to turn part of the garage into a studio), I used to come across lots of these old microphones. People would find them in storage or at
yard sales and bring them to me. Once in a while there were some decent ones, but a lot of them were pretty dodgy. The 1/4" connector means that they're "consumer" devices and have a high output impedance to be matched with the input of a low-cost tape deck, stereo system, or small PA amplifier.
Nearly all of them tend to be dynamic, which means that they operate like a tiny little speaker in reverse with a diaphragm that pushes a coil of wire back and forth within a permanent magnet. There could also be condenser mics, which might say "electret" on the housing and will often need a battery to work - usually a AA, which means that they're pretty likely to be full of fossilised dead battery leakage and might be a lost cause. That's no great loss, because they're usually the worst of the bunch.
The things to look for are sensitivity, directionality, frequency response, and self noise. Sensitivity simply describes how good they are at picking up sound and if it's high then you don't need to crank up the gain in the computer, which also amplifies any noise in the signal chain. Directionality is important when you've got other noisy things around...it's better to have a mic that only "hears" your voice and not the computer fan. Frequency response will determine how well the low, middle and high parts of the sound spectrum are captured and turned into an electrical signal. Self noise is whatever hiss, hum or crackle the microphone is making when you have it plugged in.
The good news in modern-day terms is that computer mic inputs are also high impedance and all you need is the adapter from 1/4 to 1/8" to plug it in. What I would do is line them all up and record a test sample with each one. Get up good and close, and test each one from the front, the side, and the back. Take notes or give each test a descriptive name.
Now go outside for a while. When you come back in, listen to the samples and give them a score. Listen to see how natural your voice sounds (sometimes it's good to have someone else do this). Is it boomy or thin? Are your consonants clear? Do the "S" sounds get all blurry and sound like static? Is the computer fan audible? Is there other noise, or a weird quality that you find distracting? You can also use the tools in the software to look at the spectrum on the screen and see how this lines up with your subjective assessment of how it sounds (Audacity is good for this).
You should be able to narrow down your field pretty quickly with this method. If it comes down to a few all being similar, then you could have a morning, an afternoon, and an evening mic, or whatever fits a particular vibe.