The big one over here is dash (besides the already mentioned gravecrawler, cascade, and just casting 2 cheap guys). Zurgo Bellstriker plays great and you get to make ballstriker jokes every time you cast him. Mardu Strike Leader has been good too but you need a handful of like mana dorks in your deck to reliably rebuy your vengevines with him.
For me this has been like a cool synergy you can add into a deck more than a full blown archetype.
I think the most playable variants are Emancipation Angel and Whitemane Lion. Skyfisher is a house if you have Moxen on turn one, but, uh, we generally don't. Running scrylands brings their stock up a touch but they're still awkward imo.
If you wanna stretch this out a lil I think the new Scourge of Nel Toth might be workable, since both it (and Haakon or Marang River Prowler) give you a second cast trigger out of the graveyard to actually recur those Vengevines. Dash is also huge.