Fans vary widely in how much air they move for noise made and current sconsumed.
I like the variable speed fans for all these reasons.
While speed control can be added to any fan I like the Silverstone fm121 for the dual ball bearings and the provided speed controller whose potentiometer one can mount remotely.
The fm121 cam move 110CFM at highest speed and as low as 32CFM very quietly.
Larger computer fans can move a lot more air for even less noise.
The silverstone AP182 moves ~70 CFM for only 0.05 amps on lowest speed, and on highest speed is good for a concentrated 170CFM, but this fan does not like highest speeds and battery charging voltages, the hub will get stinky plastic hot.
Noctua make some very good fans and have 'industrial' versions of their fans which spin a bit faster and are rated against dust and moisture ingress.
I am not sure how much an absorption fridge benefits from huge volumes of air moved by a fan, compared to much lesser volumes as I use a compressor fridge.
I use the Noctua NF-f12 120Mm fan on its condenser pushing air, and fridge duty cycle improved instantly. The noctua fan being ~53CFM and the provided fan being 72CFM. The pushing of air through the resistance of the condenser and the Noctuas design allow better heat removal and shorter run times than the original fan sucking air through condenser. Also the Noctua draws only 0.05 amps compared to the 0.12 amps of the provided fan.
There are many hundreds of computer fans available in all different sizes and rpm ranges. Noctua is pretty much top of the line in my opinion, but they do not offer the blazing RPMS available from fans like Delta.
I have one 120Mm delta fan which is ridiculously powerful at 252CFM and at about 50 watts, but it cannot be slowed below about 35 watts via PWM or voltage control, or it just shuts down. Much too loud and powerful for normal use, and its impeller will easily chop off a fingertip.
