How can I make my laptop good for games?

There are several ways to do that. You could add more RAM and replace the HDD with an SSD (in case the laptop didn’t come with the latter). You could buy a monitor to get a bigger screen to play games. However, the biggest difference you get in gaming performance is from the GPU. If the laptop doesn’t have a dedicated GPU, then you can’t upgrade to one. Onboard GPUs are not powerful enough to play the heavy duty AAA gaming titles. If you want to enjoy those, then you’ll have to guy a new laptop. For instance you could check out the OMEN 16-b0352TX. The gaming machine is powered by an 11th Gen Intel Core i7 processor, 16.1-inch FHD (1920 x 1080), 144 Hz, 7 ms response time, IPS screen, 16 GB RAM, 1 TB SSD and a dedicated NVIDIA GeForce RTX 3050 Ti Laptop GPU (4 GB GDDR6). The gaming beast can handle most graphics-intensive games and is priced at INR 124,999.
If you’re still confused, then check the blogs on Tech4Growth section on DQIndia’s website or the NextGenIT on CiOL’s website.