So let me tell you about my friend's boat. He has a single Lehman 120 and 2 large side tanks. When he bought the boat, it already had a Racor 900 (90 GPH) installed. The boat hadn't been cruised much in the last couple of years and there was debris in the tanks. The problem was that the Lehman returns very little fuel. So when he was out cruising in lumpy conditions, a lot of debris could accumulate in the Racor. He ended up going into each tank and extracting most of the debris. Then we plumbed an electric fuel pump to add additional flow through the Racor. The accumulations now are fairly minimal, but stuff is still being collected in the Racor because the flow is no longer a few GPH but 30 to 40 GPH.
What I installed was a Facet cube pump.
https://www.facet-purolator.com/cube/
This style of pump is incredibly reliable and usually has several times the life of a traditional pump such as a Walbro. There limitation is flow and maximum pressure. In many newer applications the fuel flow needs to be higher to cool the injector pump and may require higher delivery pressures than a Facet is capable of.
The pump is a floating plunger with a spring, electric coil, and valve. The body is one piece with no seals other than the fuel in and out connections. You will find cheaper knockoffs, but not better quality than a Facet. Your current system bleeder pump is probably of this style. For this intended purpose, they're perfect and can usually be had for <$70.
The above page has a link to their models. Select the volume and voltage to determine model number. Then Google search Facet + the model number. My preference for a Racor 1000 would be the 50 GPH flow, but anything 30 GPH and above would be fine.
The plumbing is pretty straight forward. I would install a tee on the output of your Racor. If you have to run hose between the Racor and the tee, I would recommend 3/8" ID or bigger. Probably want a valve between the tee and the electric fuel pump, just to be safe. Ideally the pump should be mounted as low as practical with the inlet facing down / output facing up. This style of pump performs better pushing fuel up instead of sucking fuel up. Ideally you want to be returning the fuel from the tank you are drawing from.
Pump draws less than 2 amps, so running it whenever the engine is running, shouldn't be noticeable. Up to you as to wiring it on its own circuit or tying it to the engine ignition circuit.
Ted