aranyakbiswas03 :
Looking for a decent motherboard for my ryzen 3 2200g (this is my first build)
That CPU has only 4 Ryzen cores so just about any socket AM4 motherboard with a B450 or X470 chipset would do well with it. There are quite a few that fit that criteria so to narrow things down a bit you have to look at other factors too.
Are you going to use it with a discrete GPU or just the iGPU in the processor? If you will go with the iGPU then I'd try to pick a board with a 3phase SoC VRM.
When finished, do you want a compact or even ultra-compact system? Knowing that will help decide if you want a full-size ATX, a smaller mATX or tiny mini-ITX form factor.
An all-around safe suggestion that will do well now and also allow for growth is the...