I use MusGlyphs for nicer looking chord symbols within Musescore (should work with other applications like Finale, Sibelius etc. as well) instead of the built in function (you have to type them as “staff text”). MusFrets is nicer than the built in fret diagrams as well (“staff text” again). Both fonts are available for free after account creation at Notation Central although a donation of at least 10 USD is recommended.