IPS panels have better and more vibrant colors and have very good viewing angels. But they are more expensive and have a slower response time (4ms - 5ms). TN panels are cheaper than IPS, but their viewing angles are not as good and the picture quality is not as good as IPS. TN panels also have a faster response time of 1ms.
If it is in your budget, then I would go with IPS. The picture quality and viewing angles is noticeably superior to TN. While 5ms and below is consider good for gaming, competitive esports gamers will use a TN panel for the faster response. For me, I cant see a difference between 4ms and 1ms. So it is not really something to consider. But if you are playing in highly competitive quick twitch shooters, maybe you would see a slight edge in the faster response time.