I find that lower ABV saisons are more mellow. My last 2 homebrewed have been 3 & 2.6% & I find they aren't as "in your face" as say a Saison Dupont.
Yeast wise I've used Wyeast French Saison & CML Lille Saison (dry) that have been quite mellow & Lallemand Belle Saison (dry) that gave a lot of...