As we transition from the launch of Battle for Azeroth into the opening of Uldir here are some trinkets to look out for while gearing up early on as well as what to aquire at higher gear levels. As of right now most trinkets do not have significant impact on performance.
This trinket amazing for early progression, being the only trinket that is “guaranteed.” The amount of mana it returns is decent and it also heals people in a chain heal like fashion. Look to get this as one of your trinkets going into Uldir progression.
This trinket amazing for early progression, since it is BoE and more than likely someone on your server will have this for sale. It gives very solid stats since it is a stat stick with int and controllable secondary stats. See below for what rotational abilities give what stat.
One of the two mana return trinkets in Battle for Azeroth with this one being on use rather than a proc. The mana returned from this trinket is quite significant and can aid on mana intense fights. If you feel mana starved, seek this out as a way of alleviating mana starvation.
This trinket provides a decent on use effect that increases healing done to the target for the next 5 direct heals you cast on them. Overall this is better than something like Revitalizing Voodoo Totem at equivalent item level.
This trinket is mediocre due to it needing to proc when healing is needed. The main downfall of this trinket is having static mastery and being very proc reliant.