When it comes to tying a swimbait, there are a few factors to consider, including the type of knot and the line you use. Based on the video context, the knot that is recommended for swimbaits is the no-slip loop knot. This knot allows the bait to move freely and gives it a natural action in the water.
As for the line, it is suggested to use monofilament line for swimbaits, particularly in clear water conditions. Monofilament line has a floating quality that can help keep the bait suspended and visible to the fish. The specific line weight can vary depending on your preference and the size of the swimbait, but a range of 6.5 to 6.10 is commonly used.
It's important to note that the video context does not explicitly mention the best line for swimbaits, so it would be helpful to have more information. Factors such as water clarity, depth, and the size of the swimbait can all influence the choice of line. If you can provide more details, I can give you a more tailored recommendation.