If you want some of the best and brightest...... Cointaker. I use them in all my games. N/G premium in all inserts and frosted in GI. Also dont by the kits they BLOW. Use the bulb matrix in the manual and match the color to the insert . It will also tell you which style bulbs so make a list and go from there.
Tips for inserts.
Red for red inserts
Blue for blue inserts
Green for green inserts
Magenta for purple inserts ( the purples and not bright and washed out )
Cool white for yellow inserts ( these really pop and yellow LEDs are not bright )
Cool or warm for white.
Tips for GI
Warm white for lower playfield with colorful ( SM, SOP, T3, LOTR ) Use for a more traditional but BRIGHT look
Cool white on lower playfield for " rock " and space themes ( TRON, ACDC, MET, )
Colored for accent in main features area.
After you make a list of everything add 3/5 bulbs of each to experiment.