Yes, those guys are good, but the dropoff in production in the guys other than Kelce, Kittle, and Waller is precipitous. Kelce and Waller have over 1000 yards receiving. After that? The rest of those guys are hovering around 600 yards receiving.
My opinion is you continue to target our good receivers. I don't know if bringing in a top TE is worth the investment when they will not be targeted as much as Diggs, Brown, and Beasley. If you want to draft a guy, that's fine. You might get lucky and find someone really good. But I would not go in free agency and pay the best TE available.