Laxogenin type products, Epicatechin, and Ara and the new exotherm. Black Lion Research, SNS, Iron Forged Nutrition, Iron Legion and Olympus Labs are great any of those products from those guys will deliver.
Spot on, especially the Laxogenin (analog of Ecdysterone).
You'll find much controversy about Ecdy, the feedback is split almost 50/50 down the middle. Yet, if you really become a student of the chemical you'll notice 2 things;
1.) It usually depends upon whether a high quality Extract (derived from Rhaponticum Carthamoides Extract or Suma, NOT Cyanotis Vaga) is used and;
2.) It excels on a cut, not a bulk
The latter can be explained by the fact they're adaptogens, not anabolics. Cutting is a physiological stress that the body needs to adapt to. Without a stress to adapt to (i.e. maintenance caloric intake/bulking), it logically follows that adaptogens perform sub-optimally).
Laxogenin is an analog of Ecdy, usually derived from Disogenin but also found naturally occurring in smilax sieboldi and our old friend, Tribulus. It imparts many of the same benefits, yet at a much lower mg amount. Most of Ecdy's merits are retained (i.e. anti-inflammatory effects, increase in protein synthesis, antagonizing of cortisol, accelerated wound healing, etc.)
Synthesizing from Diosgenin makes a lot more economic sense though. I've used Laxogenin going back to the very first product introduced in the West - Amino Discounter's "Mesobolin". Subsequent quality versions were ZOE Discoveries "Ecdysterone", Maxwell Research's "Anabolica" and a few select others, now long off the market. Quality Ecdy's for sale today are TrueTurk (Turkesterone), Mass Pro Synthagen (full spectrum RCE), Mega-Turk and Progenadrex (multi-ingredient, leveraged Laxogenin)
In terms of a standalone Lax, DermaStrength is also a quality pic. High dosed too, 50mg/ml with 60ml per bottle.
Something you'd be wise to look into...