I have rendered a few PNG images in Blender and trying to combine them into a video. Is there any tool that can help me achieve my goal?
There is a tool called FFmpeg perfectly made for your use case. FFmpeg allows you to create a video from images with different video codecs and options, you can use the following command to convert PNG images into MP4 video with an H264 video codec.
How to set a particular frame rate while combining a bunch of images into a video using FFmpeg?
FFmpeg provides -r or -framerate options to specify the output video frame. If you want to create a video with 60 FPS you can specify -r 60 in your FFmpeg command.