Henry Vaughan is little read today, principally because he seems to be off the school and BA syllabus, but if you like Donne then he is worth trying. Like his fellow metaphysical poets, he uses some huge leaps of the imagination but has none of the outrageous flamboyancy or energy of Donne himself. Vaughan is definitely quieter in tone, more contemplative and meditative. But he shares Donne's sense of rhythm and some of his rhyme schemes (Regeneration and Immortality) are quietly stunning and quite different from many other English poets. The great advantage of him being an unfashionable poet is that you can often pick up his books cheaply: this Penguin edition has a fair introduction and notes and contains the whole of Vaughan's poetic works. Definitely worth exploring.