What wordpress plugin to use to search the contents of fields that users fill out (as on the website of "Tutors")?

1. Could you tell me what plugin (or other tool) need to do on the main page, search by content fields that users fill out when registering? As "Your tutor"? For example, a registrant fills in the fields: subject (in the drop down menu: mathematics, physics, Russian language), grade (drop-down menu: 5th, 6th, 7th, etc.) and other users in the site search, select the desired teacher in the same fields: subject, grade.
2. And what better plugin to use for user registration to properly interact with the search plugin?
Thank you.
July 9th 19 at 10:37

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