We use Lincoln tig machines at work but the prices are eye watering
for a entry level machine expect to part with a grand. Miller's are also very good machines I used those in my last job but price wise your looking at the same sort of story. For a home budget welder I'd look into the clarke range they are quite well regarded in the industry as good budget welders. If it's just for home use and car work it should be more than enough not like you will be laying down run after run all day long and getting the thing red hot. Make sure it has good adjustability for the settings and a decent duty cycle and you should be fine. The best tip I give to people welding at home from single ph is to make sure the socket you are using gets a 32amp supply from the fuse box. You wouldn't believe the difference from a 16 amp to a 32, it allows you to make alot better use of the welder and it shouldn't trip out when turned right up.