Clients (tool and api)
- Typescript ton-core and ton. Both libraries has tools for working with Cell,Slice,Address etc. Client can call toncenter API
- Pretty cool CLI toncli
- Python tonsdk
- Tonutils on Go lang
Contracts (FunC, test coverage)
- My guess on a best for right now it's blueprint. You can write FunC contracts and cover it with typescript tests after that deployed vie terminal. Pretty simple to install and use.
- For Python people - one of new release Rift. It's complex framework for write smartcontract on python like OOP style. Also test incuded