The R2DT software (RNA 2D Templates) automatically generates RNA secondary structure diagrams in standard layouts using a template library representing a wide range of RNAs.

See description at RNA Central or method overview at GitHub for details or read the R2DT paper:

Sweeney, B.A., Hoksza, D., Nawrocki, E.P. et al. R2DT is a framework for predicting and visualising RNA secondary structure using templates. Nat Commun 12, 3494 (2021). DOI:10.1038/s41467-021-23555-5