Again, it depends on how you consider it and how much you want to work on a solution.

SCH's got a lot of "combination abilities". Recitation with Adlo, Indom, or Excog, Fey Illumination with several things, Dissipation with Adlo (and Succor) and AF abilities, Seraph with Consolation which can be layered with Galvanize but takes a few seconds more to get out. Deploy Adlo, possibly led into with Fey Illumination and/or Recitation and/or Protraction and/or Disipation, depending on how much you want to boost it. Several of those require around 5 sec of lead time, which isn't a lot but is significant, and which you use depends on what else you're expecting in the encounter and what you have and don't have on CD, or might be saving for upcoming mechanics.

WHM really doesn't. Temperance DOES boost healing, but you're generally going to use it for the mitigation. Plenary boosts AOE healing and can be weaved just before an AOE spell. Asylum can boost healing but is often used for the HoT more than the healing boost itself, sorta like Temperance. Unless you count Presence of Mind for healing (and don't use it on CD but rather hold it for healing needs) or Swiftcast (and don't use that for DPS or hold for Raise and are going to use it on Cure 2 or Medica for.....god only knows what reason) or Thin Air (which obviously you can also weave in before said cast, after Plenary since Plenary has a duration and won't be consumed by, say, PI -> Glare -> TA -> Medica 2; and TA doesn't boost healing, so it's kind of a different argument). That's really it, though. While other abilities can be used together, they don't modify or affect the others, they just exist.

Divine Se- er, Temperance (again, more often used for mitigation with the boosted healing just being a happy side effect), Asylum (again, mostly used for the HoT), Presence of Mind (mostly used for DPS and used on CD rather than held for healing), and Plenary Indulgence are really the only "modifier on heals" abilities that WHM has, and only one of those, PI, is really used in that way.

And the only "setup in advance" that WHM really has is Lilybell.

Similar argument to SCH with AST, which has some modifier type abilities like Nocturnal Sect and Synastry, as well as "setup in advance" stuff like Earthly Star and Macrocosmos.

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I do agree with Roe - and have said dozens of times - that WHM needs a 60 sec CD mit ability, possibly folded into PI as Protect or Wall (that would have the Pro-Shell effect).