The past few rounds of cloning I've used a few different mediums, I did a cell tray with coco-coir that had a reservoir and a mat that sucked up the water as the coir dried, it wasnt bad but took forever, 2-3 weeks similar to using a cup of soil-less or whatever.. It takes forever but basically easy and doesnt require a whole lot of input other than filling the reservoir once in a while and checking for roots every now and then. I did rapid rooters, they are great but require a lot of input and I when I took the first cuts off of my young from-seed plants the stems were so soft that they couldnt take the moisture required and rotted the stems on those, but on a normal mature plant they work fine.
I also have an ez-cloner which is 60 sites which is way more than I need at the moment but it is the easiest and fastest way to clone... Instead of running the huge 60 site ez-cloner I've decided to make a DIY bucket cloner that will cost a few bucks but is the way to go...
Heres a few that I've been looking at....
The first one is closest to the way an actual ez-cloner is setup but it costs quite a bit more than the others but this one will probably get you the fastest and most well rooted clones. Once you get your method down (water temp etc...) you can go from a fresh cutting off the mom to rooted clone in medium in less than 10 days or better once you get good at it.
https://www.rollitup.org/do-yourself/263011-diy-clone-5gal-bucket.html
https://www.rollitup.org/do-yourself/504147-clone-machine-under-20-a.html
https://www.rollitup.org/do-yourself/430426-my-20-dollar-less-cloner.html
https://www.rollitup.org/do-yourself/6678-cheapo-aero-cloner.html
A few tips... higher water temps get you roots faster but the res will get funky and stink, they really dont need oxygen until they have roots so 70-72 water temp is fine, some folks add a little bleach, pool shock, I've heard quite a few things but a little peroxide wont hurt, it keeps the oxygen levels up (again, not necessary) but it keeps microbial life down, I usually will just change the water completely the first few days with water straight out of the tap, nothing keeps microbial life down like chlorine and everything else that comes straight out of the tap (city water).... when using these types of cloners, you really dont need a humidity dome, some people still use them but I dont, I may try it again once I get something built, if you make something thats only using air stones rather than the pump style you may want to use a dome however.. Those round 2" black hockey puck looking things are the best bet for what to use to hold the cuts rather than the "engineered" things that some of the folks in the above threads use, thats what the actual ez-cloner things use and they make it easy to suspend the cuts. They sell them separately usually at hydroshops, just make sure to drill the holes a little smaller than the puck.....
Some people dont like the hydro style of cloning but I cant say enough good about it.... I used to use only this method with my ez-cloner but I have no need for 60 clones at a time, and its a fairly big machine to have laying around to get used every once in awhile, so I put it in storage. The rapid rooters are great and do the trick but I always screw them up by either letting them dry out too much or I drown them. These type of cloners are idiot proof as long as you keep the water decent and your power doesnt go out, basically all you do is put them in and check the water here and there until they have enough root for your liking... this is the other thing I like about this, of all the methods I've used and tried and failed at, this method allows you to pull each one out and see exactly how much root you have going on each cut.