Context

I'm gearing up to start a, most likely doomed already, business, but getting some coin and a story is better than neither right now, so let's give this a good try.

It'd be websites for small businesses, not a great market right now, but I'd have vertical integration with the photography side of the business: my own self, so at least that's something, and I'm already a techbro.

Photography Advice

Me as a photographer: enthusiastic amateur, I do mostly macro (may work for product), abstract/architectural (don't expect it to fully transfer to this), virtually no portraiture (whoops, but preparing on this)

Current gear: a current M43 camera with focus stacking, decently fast wide lens, wide macro lens, weak flash, other lenses that won't be super helpful here

What I know I'm missing: portrait lens (though not necessarily), lightning for portraits, lightning for product photography, a white background

Concrete question: would a cheapo ring light be enough to get this started? Should I invest in some more potent flashes instead? Both?

I'd expect my clients to mostly want environmental portraits within their business if they want that part of the service, which actually would make having control of the lightning more challenging, I may have to talk them into doing something more isolated

More generally: anything I'm glaringly missing?

Edit:

Budget: lower is better, if I could get away with <$100 would be ideal, definitely would like to top at $200