At community.snowdrift.coop, we changed historic/default to 
also, but we also changed its label to “appreciate” instead of “like”. We also made:
To change labels we uploaded new images even when they were copies of existing emoji.
but called it “totally”
but called it “tldr”
but called it “skeptical” (I think 
is similarly good)
but called it “thank you”
called it “sympathies”
called it “changed my mind” (the 
is not a bad alternate)
called “haha”
called “hooray”
(we used underscores for multi-word labels)
We thought a lot about the optimal most constructive reactions before settling on these with some adaptation over time. We do use multiple at once via Retort, so we aren’t planning to switch to Discourse Reactions since it limits one reaction per user.
Overall, your set @downey is notably similar, only really missing the options for “care” / “sympathies” and some sort of light-hearted funny option.