@Michael Nguyen I bought a SFH first because I found a good one that made financial sense. Unfortunately I had a bad inspector who missed a lot which made it about a $60K renovation instead of what I planned for which was $15K.
Shortly after I purchased a duplex and then a 4 unit and some more in that range before I bought an 8 unit.
The 8 unit has required more time and energy because it had been poorly managed for years.
I would still be buying more SFH but 5 years ago the entry was about $100K. Today it is $300K. But I can get into multi at less than $100K per unit. Yes they require renovations at that level but with a little love I am still getting cash flow.
I recommend you spend some time picking and getting to really know your market. That will help you make educated decisions. I would also recommend 1-4 units to start with because I’ve just found that to be much easier than my 5-10 unit buildings.
Also it’s likely your lender will want you to have some experience before you go too big. Not true of all lenders but you may get better rates and terms as you gain experience.