As pretty much everyone else has said, buy your gas from a station which participates in the Top Tier program. All grades sold at a Top Tier station must have the higher levels of detergents compared to the EPA mandated LAC - lowest additive concentration. Top Tier stations can choose to have even higher levels of detergents, usually in their premium offering, but all blends must meet Top Tier's minimums.
Here's a realistic view of fuel injector cleaners from
Rick's Free Auto Repair Advice with some of the brands listed by level of PEA, the "active ingredient", so to speak. He also states "Many automakers advise against routine fuel injector cleaning as preventative maintenance, and there’s a reason for that. Because modern fuel injectors and Top Tier fuels don’t cause the kind of fuel injector clogging that the industry saw back in the 80s.".
This is why
@ctechbob asked "GDI Only or GDI+Port Injection?". If GDI only, the fuel never passes over the intake valves, so can't clean them compared to non-GDI. Still, running Top Tier gas will cost you nothing more, and certainly isn't going to hurt. Running a cleaner before an oil change is not going to hurt anything, either. Most fuel cleaner products suggests only using once ever several thousand miles. For "daily use", there are upper cylinder lubricants marketed to be used each tank, but if using Top Tier fuel, highly likely not doing anything more than draining your wallet. At best, not hurting anything.
Here is a list shown in the linked article of cleaners having the highest to lowest concentration of PEA. It is not comprehensive, but at the bottom shows how to find the PEA level of other products.
Red Line® SI-1 Complete Fuel System Cleaner POLYETHER AMINE (P.E.A.) 30 – 50%
Chevron Techron Concentrate Plus 01154100-5179P Trade secret 25 – 35 %weight
Gumout Regane High Mileage Fuel System Cleaner POLYETHER AMINE (P.E.A.) 10-30%
Gumout Regane Complete Fuel System Cleaner POLYETHER AMINE (P.E.A.) 10-30%
Gumout All-In-One Complete Fuel System Cleaner POLYETHER AMINE (P.E.A.) 10-30%
Lucas Oil 10512 Deep Clean Fuel System Cleaner POLYETHER AMINE (P.E.A.) 10-30%
Royal Purple MAX-CLEAN Fuel System Cleaner and Stabilizer POLYOLEFIN ALKYL PHENOL ALKYL AMINE 5.0 – 15.0
Sea Foam Concentrated Fuel Injector Cleaner Polyolefin alkyl phenol alkyl amine 5 – 10%
Gumout One-N-Done Complete Fuel System Cleaner POLYETHER AMINE (P.E.A.) 3-7%
STP® Super Concentrated Fuel Injector Cleaner Polyolefin alkyl phenol alkyl amine 1-5%
Gumout Fuel Injector Cleaner POLYETHER AMINE (P.E.A.) 0.1-1%
Gumout High Mileage Fuel Injector Cleaner POLYETHER AMINE (P.E.A.) 0.1-1%
According to the manufacturers’ safety data sheets, these brands’ fuel system cleaners do NOT include the above-listed cleaners:
Berryman B-12CHEMTOOL TOTAL FUEL SYSTEM CLEAN-UP
BG BG 44K
Sea Foam Motor Treatment
These products consist mainly of solvents like Naphtha, Stoddard solvent, 1,2,4-trimethylbenzene, and naphthalene.
If in doubt, search for the cleaner name followed by “SDS” to read the company’s safety data sheet. Scroll down to Section 3 Composition/information on ingredients.
