Behringer - BA 85A

These Behringer mics are decent for the money : BA 85A, and XM8500. You'll need a XLR cable too, but these mics are well under $50. 

Yeah. Their BA 85A is also surprisingly decent considering its cost (and also does a good job at helping reject the room) 

As is their BA 85A. The case supplied would also cost more than the l mic if you bought a similar one separately. 

Best is subjective. There are a lot of factors to consider. Is your space sound treated? If not, you may want to consider a dynamic mic. Dynamic microphones are often recommended (as opposed to condenser mics) because they require more amplification. So the user is forced to bring the microphone closer to the mouth. This gives the perception that they are better at rejecting background noise. If your space is sound treated, a condenser mic is great at picking up higher frequency details that give recordings the crispy/sparkly sound. If you plan to shout into the mic, you need to check the microphones’ SPL rating, so you don’t damage it. I'm a proponent of XLR setups. People think they're expensive, but believe it or not, you can get a pretty decent starter XLR setup for around the same price as a budget USB mic. Going with an XLR mic & interface gives you options to upgrade components later on. If you have several mics, you can easily and quickly swap them out for different purposes. Also, if one part breaks, you don’t start from scratch. (If any part of a USB mic breaks, you have to replace the whole thing or figure out how to open it up and fix it yourself.) XLR setups are similar to building a desktop pc versus buying a laptop. You have lots of flexibility. USB mics often don’t have gain knobs, where you can easily and quickly change the gain level of your mic. USB mics usually require you to go into the software to change gain levels. If you’re going with a dynamic… Good starter XLR mics for spoken word include the Behringer XM8500, the Behringer BA85a, the Zoom ZDM-1 and the Fifine K669D. If you have more to spend, the Shure sm58 is often recommended, but the raw sound may be a bit dark/muddy for people with bassy voices. I like the Sennheiser e835 as a brighter mic (for people with lower voices). My all-time fave is the Shure Beta 58a. It's the best of both worlds, but it's a bit pricier. Decent starter interfaces include the Behringer UMC22 or the M Audio M-Track Solo. If you can stretch the budget a bit, the Focusrite Vocaster is a great value. But if you really need to cheap out, try the Teyun Q12 (or any generic/rebranded version on Ali Express or Amazon). If you have a lot more to spend, I recommend the latest Focusrite Scarlett 2i2 (I don't recommend the Solo version, as the preamps are weaker).