The Shruti says that the Svaimvara is for the Kshatriyas; the Brahmanas have no claim in a selection of husband (by a Kshatriyas lady).
न च विप्रेष्वधीकारो विद्यते वरणं प्रति। स्वयंवरः क्षत्रियाणामितीयं प्रथिता श्रुतिः॥