Picking a tech newsletter niche that still works in 2026

The hardest decision when starting a tech newsletter is the niche. Pick too broad and you compete with established giants. Pick too narrow and you run out of audience. The pattern that works in 2026 is below. ## The two failure modes Too broad: "Developer tips and AI news". Competes with thousand other newsletters, no clear identity, low conversion to paid. Too narrow: "Postgres performance tuning for game studios". 200 possible subscribers, plateau at month 6. ## The sweet spot A specific role + a specific lens. "Distributed systems for SaaS founders", "ML engineering for legal tech", "Frontend performance for ecommerce". Roughly 50,000 to 500,000 addressable readers globally is the right pool: big enough to compound, small enough to dominate. ## Test if the niche works Three signals confirm a viable niche: - You can name 20 specific topics you would write about - There is at least one other newsletter in adjacent space (proof the audience reads newsletters) - You can think of three tools, books or events whose buyers are your readers ## Niches over-saturated in 2026 Generic developer productivity. AI news roundups. Web3. Vague "future of work". Avoid. ## Niches still underserved Specific languages outside top 5 (Erlang, OCaml, Zig, Roc). Vertical SaaS engineering (legal tech, biotech infrastructure, climate tech). Cross-functional roles (DevRel for B2B, technical product marketing, developer education at scale). ## Sustainability You will publish 50 times in the first year. Pick a niche you find genuinely interesting because the audience hears whether you do.