Stable and strong promoter?
There seems to be quite an amount of resources to help OP.

Addgene has a page on topic with list and description of common promoters usable in variety of organisms: Plasmids 101: The Promoter Region

Experimental biophysics textbook mentions some useful promoters as well, or this review.

Surprisingly, there has been some quantitative analysis of promoter strength: Systematic Comparison of Constitutive Promoters and the Doxycycline-Inducible Promoter, as well as effort toward stronger synthetic (version of CMV) Synthetic design of strong promoters

My conclusion is that either viral, or CAG (based on chicken actin) promoters might be useful candidates. But one cannot expect ubiquitous and even expression in various tissues/cells types without fine-tuning expression cassette.