If I was getting into it now, I’d strongly consider Hobart welders. I don’t need all the bells and whistles of the high end machines for welding doors closed on a demolition derby car or patching a lawnmower deck. I just need a welder. The Hobart line is perfect for DIY types.
I think the Hobart 140 is a great start. Bigger is better, so depends on budget. If you can go to a 190 or 210, even better. I also wouldn’t mess with flux core wire. Yes, it works and can be used but the regular wire with shielding gas is much better. Plus the bigger MIGs are spool gun capable so you could get a spool gun if you ever wanted to weld aluminum in the future.
Some of the Chinese machines are getting good reviews, but I haven’t used any of them to know enough to be able to make a recommendation.
I have personally owned Lincoln and Miller MIGs and they are fine. My MIG currently is a Millermatic 180. I say consider Hobart because they’re a little cheaper price wise.......(Miller owns Hobart now.)
If you could get a better deal on a Miller or Lincoln, so be it. Any of those three brands will be fine.
I said similar in similar post - you may wish to read the thread for perspective. Post#11
https://www.garagejournal.com/forum/showthread.php?p=8792162#post8792162