For any female elf definitely - just compliments the overall background story so well and there is that delicious hint of the future. Although...current playthrough I've managed to create an elf that looks like she's about 13...so maybe no romance (and I'll just pretend that she has childhood friend back at the clan...in the woods or whatever...that she has always loved). Actually I suck at RP/headcanony type thing - so suspect she will end up romacing Solas!
Have done other romances - Cullen's is very sweet. And currently Blackwall with a human female. Now, no potential offence to the solasmancers (because I love that romance arc, and he does indeed say - the inquisitior is amazing, totally changed his view on...people) - but because of the story/narrative dynamics, for me the Solas romance arc is the one where he as an LI most heavily affects the Inquisitor. Unless of course you take the breakup option (the dialog choices are f'ing hilarious in a good way in the final scene). So some sort of unquatifable romance story power dynamic is really shifted to his side.
Whereas for Blackwall, seems like it's going the path where it is the Inquisitor that more heavily affects him. He sees in her (and by extension the Inquisition) his savior/salvation etc etc. Both romances have scenes of 'no this is wrong, we/I shouldn't do this'. But it hits home harder on the Blackwall side because of his story arc.
And while Cullen leans slightly more towards the Inquisitor side - because of his strong character ('I will not give more to the Chantry than I did the Inquisition') the dynamic is almost kind of neutral. Not to say Blackwall doesn't have a strong character...oh you know what I mean (maybe!).
All very nicely done!