Hello,
It varies depending on how you'd want to approach Romanticism. Most schools rarely have more than three Romanticist, so it might be difficult to locate a scholar whose work directly aligns with yours. That said, I haven't had too much trouble finding suitable programs that could match my intellectual needs.
At any rate, here are some schools to consider: UC has several very prominent Romantic scholars, such as James Chandler and Frances Ferguson, among more. Also, check out UCLA and Berkeley. Kevis Goodman, who teaches at the latter, is amazing. UW-M is pretty good, too. CUNY. Rutgers. Duke. UNC-Chapel Hill. Duke. UT. Boston College is also worth checking out.
I hope this helps.