i used to recommend one of these bad boys
https://www.amazon.com/Zalman-Zm-Mic1-Sensitivity-Headphone-Microphone/dp/B00029MTMQ/ref=sr_1_1?ie=UTF8&qid=1524595149&sr=8-1&keywords=zalman+mic
plus whatever your favorite headphones are, but it seems like the zalman is out of production now. $15 is still a pretty good deal, but I bet you could find something better for that money.
one of these is pretty close to the original price of the ZM1
https://www.amazon.com/Technica-ATR4650-Condenser-Computer-Microphone/dp/B006QSSUK2/ref=sr_1_10?s=electronics&ie=UTF8&qid=1524595568&sr=1-10&keywords=zalman+mic
but I can't vouch for its quality.
other than those, if you want a clip on you could go with just a real lav. this one looks fine
https://www.amazon.com/Professional-Microphone-Omnidirectional-Smartphones-Cancelling/dp/B016C4ZG74/ref=sr_1_3?s=electronics&ie=UTF8&qid=1524595694&sr=1-3&keywords=lavalier+microphone
but again, i can't vouch for it.
if you wanna give a desk mic a shot, really anything here should work fine
https://www.amazon.com/s/ref=nb_sb_ss_i_4_8?url=search-alias%3Delectronics&field-keywords=desk+microphone&sprefix=desk+mic%2Celectronics%2C165&crid=1IVDXZ4FXQ6PU
just make sure you buy an actual mic, not a stand.
the only thing you really need to know is that you don't need to drop 50 bucks on a modmic or a snowball to get something that'll work for comms in your favorite gamer games. as for headphones, the general rules are
- don't buy anything gamer branded
anything that says gamer is gonna be either really really cheap shit marked way way up by some no-name company to get people who don't know any better to think it must be good because it's expensive, or it's going to be the same shit you could get for about half the price, but just with LEDs and really ugly plastic pieces all over it to make it for gamers. either way, avoid at all costs.
- open backed > close backed
having an open back will give you better positional sound, but it'll also let in a lot more of your ambient noise. if you live in a really noisey house or a dorm or something, probably stick with closed back stuff, but if you can, i'd definitely say go for opens or at least semi opens.
- stick with real audio brands if you can afford them
again, you don't have to spend $200 on some 598s like all the streamers have, but something like these
https://www.amazon.com/AKG-240-Semi-Open-Studio-Headphones/dp/B0001ARCFA/ref=sr_1_3?s=electronics&ie=UTF8&qid=1524596557&sr=1-3&keywords=akg+k240
or these
https://www.amazon.com/Audio-Technica-ATH-M30x-Professional-Monitor-Headphones/dp/B00HVLUQW8/ref=sr_1_1?s=electronics&ie=UTF8&qid=1524596627&sr=1-1&keywords=m30x
are gonna be worlds better than anything from the chinese company you've never heard of, or a computer memory vendor turned headset company.