Easier Ways to Get the Silk Touch Enchantment and Other Enchantments

I feel that getting the silk touch enchantment requires a lot of luck. You can draw the enchantment randomly from a fishing rod of have the chance of getting the trade with a librarian villager. It would be very helpful to include more ways to get the silk touch enchantment. I would suggest that enchantment books spawn in more locations such as the igloo. This would be beneficial to players who are looking for other enchantments too, to be able to find them in more biomes.