Hello and welcome! It would help to know more about what you want to do/what you feel your current machine isn't doing for you. Are there specific features you want? Would you consider a used system/do you have a shop that will sell you one with a warranty or service contract?
For a long time I used a very basic vintage machine (it did have zig zag and that was about it), but a wonderful reliable steady straight stitch. Then for a year I've been using a modern Bernina that needs to go to the shop right now. With that down, I brought out my cheapo portable Brother (a lower end model than yours) because working beats non-working! Anyway, I have multiple machines and they all have advantages and disadvantages and what those are depends on the person and the project.
I'd say the first thing I'd do with Brother like yours or mine is put down an anti-skid mat or something if you don't have a table mount. Mine wants to dance all around the table while I chase it!