Kevin indicate color of the light bulb, as follow:
2200K: Warm white
2700K: Soft white
3000K: Soft White Glow
4000k: Natural daylight
5000K: Cool white
So, to look for your favorite color, simply type "3000K Filament Bulb" and you will find the bulb you want. I prefer Amazon since they have a wide range of light bulb and brand to choose.
Lumen indicate brightness of the bulb. Here is the rule:
Floor: 20 lumen per squarefoot
Table and Raised Surface: 30 lumen per squarefoot
Desk and Task Lighting: 50 lumen per suqarefoot.
These rules are not always applicable since furniture, wall color and other small lighting fixtures can affect the brightness of the light bulb, but at least you have some number that you can based on.
For example, 300 sqft living room with 6 flood light hole. You will need at least: 300 sqft x 20 lumen = 6000 lumen total. So each light bulb need at least: 6000 lumen / 6 light hole = 1000 lumen for each bulb.
I hope this help!
My personal preference: 3000K and 800+ lumen.
Q