It is the most interesting question, and the answer is yours to find. We can only give a few pointers.
Silk has some give, which makes it very pleasant in the hand and easy to knot.
We choose the four-in-hand. This silk is dense, so we advise against the double knot, the Windsor: it is a large knot by nature, it uses a lot of cloth and comes out thick, and in our view the two together look clumsy. The half Windsor, close to the four-in-hand, is an option.
The double knot, on the other hand, is perfect on a tie without interlining, ideally in printed silk: see our seven fold ties.
Good to know: for the proportions, wear your tie with a shirt whose collar spread is fairly wide or very wide. Prefer a collar band taller than 1 in (2.5 cm) as well, to show off the knot and the tie.
Bonus: the knot shows your creative side, the mood of the moment, the care and the passion you put into it.