Coverstitch Machine. To get or not to get

I own a singer HD and a brother 1034D serger. I have obsessed for a long time about clean hems especially on Tees and knits. I have tried to achieve a similar look with the two lines by used a double needle on my sewing machine. But I don’t like how the raw side looks.

My question. I don’t want to have 3 machines on my sewing table. Should I;

a: Get rid of my serger and fine a brother that does both a cover stitch and serger. Or b is there a replacement sewing machine that would also do serging?

What is an ideal setup? How is everyone hemming tees and knits without a cover stitch for a professional finish