If you're a senior golfer with a lower swing speed, you'll generally benefit from golf balls designed to optimize distance and provide a soft feel. You might consider balls with lower compression and a soft cover, as they can help maximize the distance you get from your swing. Here are some suggestions as of my knowledge cutoff in September 2021:

  1. Titleist DT TruSoft: This golf ball provides a very soft feel on all shots, with low spin for impressive distance.

  2. Callaway Supersoft: This is a low compression ball that's designed to enhance distance and provide a super soft feel.

  3. Srixon Soft Feel: This ball is designed to launch high with low spin to create more distance for moderate swing speeds.

  4. Wilson Staff Duo Soft: This is one of the lowest compression balls on the market, designed for soft feel and improved distance.

  5. Bridgestone e6 Soft: This ball is designed to fly straight and far, and it features a soft feel.

  6. TaylorMade Project (a): Designed for the amateur golfer, this ball combines distance with a soft feel and increased spin around the greens.

  7. Volvik DS-55: This is a good option for those looking for extremely low compression, contributing to a soft feel and better performance at lower swing speeds.

  8. Mizuno RB 566V: This ball offers a soft feel and low driver spin for maximum distance with a slower swing.

Remember to try a few different options to see which one works best for you. Also, keep in mind that golf ball technology and offerings continue to evolve, so newer models might be available.