Yes, both DebugBear and SolarWinds Pingdom offer a Free Trial.
DebugBear is designed for Large Enterprises, Medium Business and Small Business.
SolarWinds Pingdom is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for DebugBear Starts at $49/Month whereas for SolarWinds Pingdom Starts at $10/Month when Billed Yearly.
Some top alternatives to DebugBear includes Super Monitoring, PageCheck, Wattspeed, Dotcom Monitor, DevMonitor.io, GTmetrix, Uptrends, SolarWinds Pingdom, PageWatch and Speedrank.
Some top alternatives to SolarWinds Pingdom includes Freshping, Uptime, Pingmeter, SolarWinds ipMonitor, Visualping, pingnow.io, Epic Ping, PingPing, Pingt.io and PingSphere.