Hi jd,
We were there in March, based in Minori. Some thoughts below.
In addition to the abovementioned, maybe consider visiting quieter Scala, if only for a meal and the world-class view of Ravello from Scala itself --best at sunrise*.
Ischia isle is underrated and has added value with the isle Procida a mere 15 min. ferry ride away.
Minori itself, plus Cetara down the coast, are genuine Italian towns that have much to offer. Cetara is arguably the most authentic working fishing village on the coast, with smaller, less hectic crowds and attractive setting, while Minori is a foodie (that word) town, Sal de Riso , including a home-made pasta specialist plus a trio of the best sandwich-making options.
*Those seeking a less strenuous but still worthy hike could consider The Path of the Lemons out of Minori across to Maori--we did it twice.
Note also that Herculaneum is both smaller and less congested than Pompeii, its also somewhat better-preserved, plus it has actual shade here and there.
Good luck.
I am done. the end.