I think that there are some great quality pre-workout options available but it really depends on what you're looking for in a pre-workout product. Since you mentioned Jack3d, I assume you may be looking for stimulant products in your case, but I'm going to cover a few different types of pre-workout categories for people reading that may look for different things.
Stimulant Pre-Workouts:
- SNS VasoForce Rush - Convenient Capsule Form - Fast Acting, Long Lasting Energy - Great for Pumps, Vascularity, & Endurance - capsule form allows you to conveniently adjust your dosage based on individual needs.
- Muscle Addiction Pump Addict Ultra Hardcore - High Energy Pre-Workout & Great Pumps - Restock ETA 3 weeks
- Iconic Formulations All Out Ultra - Moderate Stim + Great Performance Ingredients
- SNS Focus XT - Nootropic pre-workout to increase energy, mental focus, clarity, & concentration. (low stim)
Mental Focus, Clarity, & Concentration - Get Your Mind on Your Workouts:
- SNS Focus XT - Nootropic pre-workout to increase energy and mental focus, clarity, & concentration.
- SNS Focus XT - Stimulant Free - Nootropic pre-workout formula to increase mental focus, clarity, & concentration
Stimulant Free Pre-Workouts:
- SNS VasoForce XT - Convenient Capsule Form - great for pumps, vascularity, endurance, etc.
- CEL Super Swole - New version will be out within the next 2 months - removing GlycerPump due to clumping but adding several cool new ingredients to take its place.
I hope this helps.