When it comes to expressing "in manner ways", there are several synonyms that can come in handy. These include "in fashion", "in style", "in mode", "in vogue", "in trend", "in method", "in technique", "in practice", "in approach", and "in behavior". Each of these synonyms carries its own subtle connotations and nuances, depending on the context and the tone of the communication. Whether you want to convey a sense of propriety, sophistication, spontaneity, innovation, conventionality, or uniqueness, you can find a synonym that fits the bill and adds variety and interest to your language.