[bjacobt]

I was in the same situation as you. I found it difficult to design my own that works good on desktop and mobile.

So I purchased multiple themes and settled on Landkit[0], which is built on top of bootstrap.

[0]https://landkit.goodthemes.co/

[ecesena]

I also purchased Landkit, but eventually found it very heavy. I then essentially remade it on top of Fresh [1]. Code is here if anyone needs it [2].

[1] https://github.com/cssninjaStudio/fresh

[2] https://github.com/saasform/saasform/tree/main/data/themes/f...

[floridageorgia]

Landkit looks clean. I'm not using bootstrap but will keep the landkit example in my backpocket.