As it says in the title, make a list or reply with what is good at performance and cost. I have been thinking of either buying Raspberry Pi or Arduino, but wanted to see if the forum could help by recommending others like the 2 that cost less and perform almost like them. I don't really plan on doing anything if I do get any at the moment, but it would help if you could leave a description or link as to what its capabilities are. Thanks for looking!