Weaker coffee has a lot to do with how large the grind is, if you think the coffee is too weak then grind it finer to slow down the water so it stays in contact with grounds longer.
I tried a pour over, and like you, it was just ok, so I went to the Hario V60 Switch which is a combination immersion and pour over, and this makes coffee a heck of lot better than just a pour over. I preheat mine maker first, so I put the filter in, and then pour boiling hot water into the Switch, and then cover it with a plastic lid I found to keep the heat in. I then boil 8 more ounces, just about 45 seconds before the microwave is done, I press the lever to open the flow on the Switch down to release the water out of if and into the cup where it will preheat the cup, I leave the maker on the cup to keep the heat in. Close the lever and dump my coffee into the filter once all the water is out, then pour just enough water over the grounds to cover it so it can bloom for about 45 seconds, I don't think the time is too important, 45 to 60 seconds is good. Pour the rest of the water in and stir the grounds gently to keep any grounds from floating for about a minute, then put my lid back on and wait 8 minutes, when there is about a minute left I carefully remove the maker off the cup and dump the water out of the cup and put the maker back on and then release the coffee. The Hario makes coffee stronger than French Press or the AeroPress which is just a fancy French Press.
If anyone decides to try the Hario V60 Switch there are couple of words of warning. First there is a small ball bearing at the base of the maker, if you tip that maker on its side or upside down that ball will come out, this is by design, it is not a flaw, but you need to know this so you don't accidently dump the bearing out and have it go somewhere that you can't find it! The second issue which the maker has received some critical comments about, which I think are lame critics, but the lever is made of plastic, you don't need to press it down or up with any degree of force, if you do it can and has broke, you would think this would be common sense but yet people have broke theirs and then they cry about it.
Another strong way to make coffee is using a Moka pot, especially the Bialetti Brikka if you want perfect moka coffee most of the time, this one has a pressure valve in it that makes the coffee for consistent time after time vs the original non-pressure valve versions. This is the original espresso maker by the way, and is used all over the world.
Another way to make coffee strong, this version is the strongest flavored way of making coffee in the world, and that is making Turkish coffee, but this does require a grinder that can grind the coffee into a powder like consistency which most grinders cannot do, so you will need to shop for a grinder, I use the 1Zpresso JX Pro S manual coffee grinder, this is adjustable so you can use it for other types of coffee. I make Turkish coffee quite a bit, it is very good, you do need to watch several YouTube videos to get the gist of how to make it. The components are cheap to buy, the only expensive thing is the grinder, and you can find Turkish coffee kits on Amazon, make sure you get the thickest copper one for better heat retention and even heating. This is another type of coffee maker that is used all over the world, and has been for many many years, longer than any other type of maker.