Are there other shortcuts that are similar to LMK in texting?

Indeed, there are a lot of texting abbreviations similar to LMK. As an example, BRB translates to Be Right Back, FYI translates to For Your Information and IMO translates to In My Opinion. Such shortcuts assist individuals to chat and communicate online at a quicker rate. They are used in informal conversations as well like LMK. These abbreviations may be easier to understand and may make it easier to follow the modern digital communication style, particularly when discussing them with peers or using social media. Know more about lmk meaning in text

Source: Saferloop