Choose whatever. Go is fine. Ruby is fine. Next.js is fine. Python with Django is fine. Even Haskell is fine if your initial gang knows it well. You won't fail

Choose whatever. Go is fine. Ruby is fine. Next.js is fine. Python with Django is fine. Even Haskell is fine if your initial gang knows it well. You won't fail because of the tech. Actually choosing something everyone is comfortable and confident in using is probably a good choice. You may fail for too many innovation tokens though. If you go off the rails (ha ha ha) on tech stack maybe stick to postgres for storage and AWS for hosting.