I love my Juki TL 2020. The TL 18 is one step above for bag making and thick layers. It has all the features and speed control. It's about $800- $1000. Sales are frequent. I would buy from Juki Junkies online. They have perfect customer service record and every machine is tested before being sent out. Also they will ask you a lot of questions to be sure you get the machine that will do what you want it to do and will not try to push a higher model. If no local dealer you can trust then I'd use
https://jukijunkies.com/ The Handiquilter has a quality straight stitch machine about $1500 at Stitchin Heaven right now with free ext table until April 1. It's an excellent machine for serious fmq.